36:20-32 Those who despise the word of God, will soon show, as this king did, that they hate it; and, like him, they would wish it destroyed. See what enmity there is against God in the carnal mind, and wonder at his patience. The princes showed some concern, till they saw how light the king made of it. Beware of making light of God's word!
23. three or four leaves—not distinct leaves as in a book, but the consecutive spaces on the long roll in the shape of doors (whence the Hebrew name is derived), into which the writing is divided: as the books of Moses in the synagogue in the present day are written in a long parchment rolled round a stick, the writing divided into columns, like pages.
pen-knife—the writer's knife with which the reed, used as a pen, was mended. "He" refers to the king (Jer 36:22). As often as Jehudi read three or four columns, the king cut asunder the part of the roll read; and so he treated the whole, until all the parts read consecutively were cut and burnt; Jer 36:24, "all these words," implies that the whole volume was read through, not merely the first three or four columns (1Ki 22:8).