John Calvin Reformed @genevareformer

Here Jeremiah adds some comfort, even that Zedekiah himself would not be slain by the sword, but that he would die in his bed, and, as they commonly say, yield to his fate. It was indeed some mitigation of punishment, that God extended his life and suffered him not to be immediately smitten with the sword.

Matthew Henry Presbyterian @wholebiblehenry

This prophecy concerning Zedekiah was delivered to Jeremiah, and by him to the parties concerned, before he was shut up in the prison, for we find this prediction here made the ground of his commitment, as appears by the recital of some passages out of it, Jer 32:4. Observe, I.

Commenting on Jeremiah 34:1-7

John Gill Reformed Baptist @doctorgill

Yet hear the word of the Lord, O Zedekiah king of Judah,.... Which, though a king, he ought to hearken to; and, besides, what follows was for comfort, being a mitigation of his sentence, and containing in it mercy, as well as judgment: thus saith the Lord of thee, thou shalt not die by the sword: of the king of Babylon; or a violent death...