From the early Church Fathers to now.
2 Patristic · 2 Jewish · 2 Reformed
“But if you will not, and will provoke me to wrath: the sword shall devour you because the mouth of the Lord hath spoken it.”
“And that expression, "The sword shall devour you," does not mean that the disobedient shall be slain by the sword, but the sword of God is fire, of which they who choose to do wickedly become the fuel. Wherefore He says, "The sword shall devour you: for the mouth of the Lord hath spoken it." And if He had spoken concerning a sword that cuts and at once despatches, He would not have said, shall devour.”
“Moreover, we know that even holy people have been given over bodily to Satan or to great sufferings on account of some slight sins. For the divine clemency does not permit the least blemish or stain to be found in them on the day of judgment. According to the words of the prophet, which are in fact God's, he purges away all the dross of their uncleanness in the present so that he may bring them to eternity like fire-tried gold or silver, in need of no penal cleansing.”
“for the mouth of the Lord spoke Where did He speak? (Lev. 26:25) “And I will bring upon you a sword.””
“You shall be devoured with the sword. That is to say, If you be obedient you shall eat the good, and if you rebel you shall be devoured with the sword. Supply before חֶרֶב ‘ the sword,’ either the verbal noun אֲכִילַת. ‘ a devouring of,’ or the preposition ב ‘ with ’ ; comp. בבית = בית ‘ in the house ’ (2 Kings 18:15). For the mouth of the Lord hath spoken it. Be sure that this prediction will be fulfilled, for the mouth, etc.”
“But if ye refuse and rebel,.... The Targum is, "and do not receive my Word"; the Messiah, when come, neither his person, nor his doctrines and ordinances: ye shall be devoured with the sword; of the Roman armies, as they were under Titus Vespasian; see Mat 22:7. for the mouth of the Lord hath spoken it; now, by Isaiah, as well as in former times, Lev 26:25.”
“Lord hath spoken it--Isaiah's prophecies rest on the law (Lev 26:33). God alters not His word Numbers 23. 19).”
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.