The interpretation timeline
Judges 6:19 Douay-Rheims

So Gedeon went in, and boiled a kid, and made unleavened loaves of a measure of flour: and putting the flesh in a basket, and the broth of the flesh into a pot, he carried all under the oak, and presented to him.

A.D. 397 – 1871 7 witnesses

Patristic

before A.D. 750
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“And Gideon, moved by that message, when he heard that, though thousands of the people failed, God would deliver His own from their enemies by means of one man, offered a kid, and according to the word of the Angel, laid its flesh and the unleavened cakes upon the rock, and poured the broth upon them. And as soon as the Angel touched them with the end of the staff which he bore, fire burst forth out of the rock, and so the sacrifice which he was offering was consumed. By which it seems clear that that rock was a figure of the Body of Christ, for it is written: "They drank of that rock that followed them, and that rock was Christ." Which certainly refers not to His Godhead, but to His Flesh, which watered the hearts of the thirsting people with the perpetual stream of His Blood. Even at that time was it declared in a mystery that the Lord Jesus in His Flesh would, when crucified, do away the sins of the whole world, and not only the deeds of the body, but the desires of the soul. For the flesh of the kid refers to sins of deed, the broth to the enticements of desire as it is written: "For the people lusted an evil lust, and said, Who shall give us flesh to eat?" That the Angel then stretched forth his staff, and touched the rock, from which fire went out, shows that the Flesh of the Lord, being filled with the Divine Spirit, would burn away all the sins of human frailty. Wherefore, also, the Lord says: "I am come to send fire upon the earth."”
Source
604
A.D.
Gregory the Great Patristic
c. A.D. 540–604
“"But I say unto you, that whosoever looketh on a woman to lust after her, hath committed adultery with her already in his heart." "The humour," therefore, "is wiped off," when sin is not only severed from the deed, but also from the thought. It is hence that Jerubbaal saw the Angel when he was winnowing corn from the chaff, at whose bidding he forthwith dressed a kid and set it upon a rock, and poured over it the broth of the flesh, which the Angel touched with a rod, and thereupon fire coming out of the rock consumed it. For what else is it to beat corn with a rod, but to separate the grains of virtues from the chaff of vices, with an upright judgment? But to those that are thus employed the Angel presents himself, in that the Lord is more ready to communicate interior truths in proportion as men are more earnest in ridding themselves of external things. And he orders a kid to be killed, i.e. every appetite of the flesh to be sacrificed, and the flesh to be set upon a rock, and the broth thereof to be poured upon it. Whom else does the "rock" represent, saving Him, of Whom it is said by Paul, "And that rock was Christ"? We "set flesh then upon the rock," when in imitation of Christ we crucify our body. He too pours the juice of the flesh over it, who, in following the conversation of Christ, empties himself even of the mere thoughts of the flesh themselves. For "the broth" of the dissolved flesh is in a manner "poured upon the rock," when the mind is emptied of the flow of carnal thoughts too. Yet the Angel directly touches it with a rod, in that the might of God's succour never leaves our striving forsaken. And fire issues from the rock, and consumes the broth and the flesh, in that the Spirit, breathed upon us by the Redeemer, lights up the heart with so fierce a flame of compunction, that it consumes every thing in it that is unlawful either in deed or in thought.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“Matzos containing flour. We learn that it was Pesach, the day the Omer offering was waved. This is why it is said, "Behold, a toasted barley bread was careening, etc." Soup. Broth.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And the angel of God said unto him,.... Instead of sitting down and partaking of the entertainment made for him, he bid him do as follows: take the flesh, and the unleavened cakes, and lay them upon this rock; not as a table to eat it from, but as an altar to offer it upon; and which rock and altar might be typical of Christ, who sanctities every gift, present, and offering of his people: this rock was undoubtedly in sight, and very probably the oak, under which they were, grew upon it, or at the bottom of it, where it was no unusual thing for oaks to grow, Gen 35:8, but it was upon the top of the rock that these were to be laid, where afterwards an altar was built, Jdg 6:26. and pour out the broth; upon the flesh and cakes, and upon the rock also, which by bringing from his house must have been cool and it became cooler by being poured out, and cooler still by being poured upon a cold rock: and he did so; he readily obeyed his orders; though he had reason to wonder he should have so ordered the food he brought for his entertainment to be thus made use of; perhaps he might expect that he intended to give him a sign, as he desired, and therefore the more readily, without any objection, complied with his order.”
Source
1849
A.D.
1774–1849
“Measure. Hebrew, “epha,” containing ten gomors, each of which was sufficient for the daily maintenance of a man; so that Gedeon brought as much as would have sufficed for ten men. Abraham presented no more before the three angels, Genesis xviii. 6. The magnificence of the ancients consisted rather in producing great abundance, than in multiplying dishes. — Broth. Syriac and Arabic translate, “a good (old) wine.””
Source
1871
A.D.
1871
“Gideon went in, and made ready a kid; . . . the flesh he put in a basket, and he put the broth in a pot--(See on Gen 18:7). The flesh seems to have been roasted, which is done by cutting it into kobab, that is, into small pieces, fixed on a skewer, and put before the fire. The broth was for immediate use; the other, brought in a hand-basket was intended to be a future supply to the traveller. The miraculous fire that consumed it and the vanishing of the stranger, not by walking, but as a spirit in the fire, filled Gideon with awe. A consciousness of demerit fills the heart of every fallen man at the thought of God, with fear of His wrath; and this feeling was increased by a belief prevalent in ancient times, that whoever saw an angel would forthwith die. The acceptance of Gideon's sacrifice betokened the acceptance of his person; but it required an express assurance of the divine blessing, given in some unknown manner, to restore his comfort and peace of mind.”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“He entered in. (Greg., bk. III of the Morals, ch. 17.) When Gedeon was beating out the grain from the chaff, etc., up to but let him also wipe away everything that is shamefully bound up within himself through thoughts. Him whom his father assigned to deceits, Gedeon slew, and offered another, seven years old, to God; in which he showed that after the coming of Christ all the sacrifices of heathendom were to be abolished, and that now only the sacrifice of the passion of Christ was to be offered to God for the redemption of the people. For he himself is the calf of seven years, full, that is, of the sevenfold Spirit.”
Source
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.