Moses
Exodus 34:18ESV·traditional attribution

“You shall keep the Feast of Unleavened Bread. Seven days you shall eat unleavened bread, as I commanded you, at the time appointed in the month Abib, for in the month Abib you came out from Egypt.

Matthew Henry Presbyterian @wholebiblehenry

Here is a repetition of several appointments made before, especially relating to their solemn feasts. When they had made the calf, they proclaimed a feast in honour of it; now, that they might never do so again, they are here charged with the observance of the feasts which God had instituted.

Commenting on Exodus 34:18-27

John Gill Reformed Baptist @doctorgill

All that openeth the matrix is mine,.... Or "the womb", and therefore to be sanctified, and set apart for his use: this also was declared, and the law concerning it given, at the time of their coming out of Egypt, and here repeated; see Gill on Exo 13:2, Exo 13:12. . Exodus 34:20 exo 34:20 exo 34:20 exo 34:20Every firstling of an ass thou shalt redeem,....

Keil & Delitzsch Lutheran @keilanddelitzsch

Exo 34:17-26 The true way to worship Jehovah is then pointed out, first of all negatively, in the prohibition against making molten images, with an allusion to the worship of the golden calf, as evinced by the use of the expression מסּכה אלהי, which only occurs again in Lev 19:4, instead of the phrase “gods of silver and gold” (Exo 20:23); and then positively, by...

Commenting on Exodus 34:17-26