John Calvin Reformed @genevareformer

It follows, And Zephaniah had read, etc The past perfect tense is more suitable here, for the verse ought to be put in a parenthesis. The Prophet obviates a doubt which might have been entertained. He then shews how the prophecy was made known to him; he was one of the hearers when the letter was read.

Matthew Henry Presbyterian @wholebiblehenry

We have perused the contents of Jeremiah's letter to the captives in Babylon, who had reason, with a great deal of thanks to God and him, to acknowledge the receipt of it, and lay it up among their treasures. But we cannot wonder if the false prophets they had among them were enraged at it; for it gave them their true character.

Commenting on Jeremiah 29:24-32

John Gill Reformed Baptist @doctorgill

And Zephaniah the priest read this letter,.... Of Shemaiah's to him, and the other priests: in the ears of Jeremiah the prophet: whether out of good will, to let him know who were his enemies abroad; or out of ill will, to stir up the people against him; or in pretence of proceeding equitably with him; not taking him up, and punishing him before he...