The interpretation timeline
Psalm 56:4 Douay-Rheims

He hath sent from heaven and delivered me: he hath made them a reproach that trod upon me. God hath sent his mercy and his truth,

A.D. 373 – 1871 9 witnesses 12 excerpts

Patristic

before A.D. 750
373
A.D.
c. A.D. 296–373
“One thing you can count on: Corruption does not save those who get into it. On the contrary, it sets itself up against them, tears them down and brings about their doom. Woe to those people against whom this prophecy is written! For the evil they pursue is sharper than a two-edged sword, and it will first slay those who lay hold of it. Even their own tongue, as the psalmist points out, "is a sharp sword, and their teeth are spears and arrows."”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Casting away therefore all anxiety and superfluous care, let us return to ourselves; and let us adorn the body and the soul with the ornament of virtue; converting our bodily members into instruments of righteousness and not instruments of sin.And first of all, let us discipline our tongue to be the minister of the grace of the Spirit, expelling from the mouth all bitterness and malice and the practice of using disgraceful words. For it is in our power to make each one of our members an instrument of wickedness or of righteousness. Hear then how people make the tongue an instrument, some of sin, others of righteousness! "Their tongue is a sharp sword." But another speaks thus of his own tongue: "My tongue is the pen of a ready writer." The former worked destruction; the latter wrote the divine law. So one was a sword, the other a pen, not according to its own nature but according to the choice of those who employed it. For the nature of this tongue and of that was the same, but the operation was not the same.”
Source
411
A.D.
Tyrannius Rufinus Patristic
c. A.D. 345–411
“I have read the document sent from the East by our friend and good brother to a distinguished member of the Senate, Pammachius, which you have copied and forwarded to me. It brought to my mind the words of the prophet: "The sons of men whose teeth are spears and arrows and their tongue a sharp sword." But for these wounds that people inflict on one another with the tongue we can hardly find a physician; so I have turned to Jesus, the heavenly physician, and he has brought out for me from the medicine chest of the gospel an antidote of sovereign power; he has assuaged the violence of my grief with the assurance of the righteous judgment that I shall have at his hands. The potion that our Lord dispensed to me was nothing else than these words: "Blessed are you when people persecute you and say all manner of evil against you falsely. Rejoice and leap for joy, for great is your reward in heaven, for so persecuted they the prophets who were before you." With this medicine I was content, and, as far as the matter concerned me, I had determined for the future to keep silence; for I said to myself, "If they have called the master of the house Beelzebub, how much more them of his household?" (that is, you and me, unworthy though we are). And, if it was said of him, "He is a deceiver, he deceives the people," I must not be indignant if I hear that I am called a heretic and that the name of mole is applied to me because of the slowness of my mind or indeed my blindness. Christ who is my Lord, yes, and who is God over all, was called "a gluttonous man and a drunkard, a friend of publicans and sinners." How can I, then, be angry when I am called a carnal man who lives in luxury?”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“..."He hath sent from heaven His mercy and His truth." For what purpose? "And hath drawn out my soul from the midst of the lions' whelps" [Psalm 57:4]. "Hath sent," he saith, "from heaven His mercy and His truth:" and Christ Himself saith, "I am Truth." There was sent therefore Truth, that it should draw out my soul hence from the midst of the lions' whelps: there was sent mercy. Christ Himself we find to be both mercy and truth; mercy in suffering with us, and truth in requiting us. ...Who are the lions' whelps? That lesser people, unto evil deceived, unto evil led away by the chiefs of the Jews: so that these are lions, those lions' whelps. All roared, all slew. For we are to hear even here the slaying of these very men, presently in the following verses of this Psalm. "And hath drawn out," he saith, "my soul from the midst of the lions' whelps." Why sayest thou, "And hath drawn out my soul"? For what hadst thou suffered, that thy soul should be drawn out? "I have slept troubled." Christ hath intimated His death. ...”
Source
“Had you become so hardened, false Israelites? Were you by your excessive malice so lost to all sense, as to imagine that you were unpolluted by the blood of the innocent, because you gave it up to be shed by another? Was even Pilate himself going to slay Him with his own hands, when made over by you into his power for the very purpose? If you did not wish Him to be slain; if you did not lay snares for Him; if you did not get Him to be betrayed to you for money; if you did not lay hands upon Him, and bind Him, and bring Him there; if you did not with your own hands present Him, and with your voices demand Him to be slain,-then boast that He was not put to death by you. But if in addition to all these former deeds of yours, you also cried out, "Crucify, crucify [him];" then hear what it is against you that the prophet proclaims: "The sons of men, whose teeth are spears and arrows, and their tongue a sharp sword." These, look you, are the spears, the arrows, the sword, wherewith you slew the righteous, when you said that it was not lawful for you to put any man to death. Hence it is also that when for the purpose of apprehending Jesus the chief priests did not themselves come, but sent; yet the evangelist Luke says in the same passage of his narrative, "Then said Jesus unto those who were come to him, [namely] the chief priests, and captains of the temple, and elders, 'Be ye come out, as it were, against a thief?'" etc? As therefore the chief priests went not in their own persons, but by those whom they had sent, to apprehend Jesus, what else was that but coming themselves in the authority of their own order? and so all, who cried out with impious voices for the crucifixion of Christ, slew Him, not, indeed, directly with their own hands, but personally through him who was impelled to such a crime by their clamor.”
Source
“"He was a murderer from the beginning." This it is that explains, "the lusts of your father ye will do." "Ye seek to kill me, a man that telleth you the truth." He, too, had ill-will to man, and slew man. For the devil, in his ill-will to man, assuming the guise of a serpent, spoke to the woman, and from the woman instilled his poison into the man. They died by listening to the devil, whom they would not have listened to had they but listened to the Lord; for man, having his place between Him who created and him who was fallen, ought to have obeyed the Creator, not the deceiver. Therefore "he was a murderer from the beginning." Look at the kind of murder brethren. The devil is called a murderer, not as armed with a sword, or girded with steel. He came to man, sowed his evil suggestions, and slew him. Think not, then, that thou art not a murderer when thou persuadest thy brother to evil. If thou persuadest thy brother to evil, thou slayest him. And to let thee know that thou slayest him, listen to the psalm: "The sons of men, whose teeth are spears and arrows, and their tongue a sharp sword."”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“from the disgrace of him who yearns to swallow me up And He will save me from the disgrace of ֹשֹאַפִי, who says to swallow me up, golosa moy in Old French, longs to swallow me up. (See above 56: 2.)”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“My soul is among lions,.... Not literally understood; though such there might be in the wildernesses where he sometimes was; but figuratively, men comparable to lions, for their stoutness, courage, strength, fierceness, and cruelty; meaning not his own men, as some think, who were fierce, and of keen resentment against Saul, and would fain have killed him when he was in the cave, had they not been restrained by David, Sa1 24:4; but Saul, and those with him, who were three thousand chosen men, stout, courageous, fierce, and furious. It is usual in scripture to describe powerful princes, and especially persecuting ones, by the name of lions, Pro 28:15. Achilles, in Homer (o), is compared to a lion for his cruelty. The soul of Christ was among such, when he was apprehended by the band of men that came with Judas to take him; when he was in the high priest's hall buffeted and spit upon; and when he was in the common hall of Pilate, surrounded by the Roman soldiers; and when he was encircled on the cross with the crowd of the common people, priests and elders, Mat 26:55; and so the souls of his people are often among lions, persecuting men, and Satan and his principalities, who is compared to a roaring lion, Pe1 5:8; and among whom they are as wonderfully preserved as Daniel in the lion's den; and I lie even among them that are set on fire; of hell, as the tongue is said to be in Jam 3:6; by the devil, who stirred up Saul against David, filled him with wrath and fury, so that he breathed out nothing but flaming vengeance, threatening and slaughter, against him; and by wicked men his courtiers, who kindled and stirred up the fire of contention between them; among these incendiaries, as Junius renders the word (p), David was, who inflamed the mind of Saul against him, which he suggests in Sa1 24:10; even the sons of men, whose teeth are spears and arrows; whose words, formed by means of their teeth, were very devouring ones, Psa 52:4; were very piercing and wounding; calumnies, detractions, and backbitings, speaking against him when absent and at a distance, may be meant; see Pro 30:14; and their tongue a sharp sword; See Gill on Psa 52:2; and there was a sort of swords called "lingulae", because in the shape of a tongue (q). (o) Iliad. 24. v. 40, 41. (p) "incendiarios", Junius & Tremellius, Piscator; "flammantes", Gejerus, Michaelis; so Ainsworth, Cocceius, Vatablus, Musculus. (q) A. Gell. Noct. Attic. l. 10. c. 25.”
Source
1849
A.D.
1774–1849
“Sent his mercy, &c., (Calmet) above the power of man. (Worthington) — Reproach. Saul was forced to entreat David to preserve his family, as he had just spared his own life; which would, no doubt, mortify his pride, (1 Kings xxiv. 18, 22.; Calmet) and seem a reproach to him. (Worthington)”
1863
A.D.
“The text, which is obscure, may be translated : " reproach of my persecutor :" which may be under- etood, of saving him from the disgrace and ruin which his enemy designed to bring upon him. The Septuagiut and St. Jerome understand the latter term of one who tramples under foot. The moderns explain it of one who pants for revenge. The Vulgate means that God brought disgrace on the persecu- tors of the psalmist: which coincides with the interpretation of St. Jerome: "exprobrabit conculcantibus me."”
Source
1871
A.D.
1871
“The mingled figures of wild beasts (Psa 10:9; Psa 17:12) and weapons of war (Psa 11:2) heighten the picture of danger. whose . . . tongue--or slanders.”
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.