Moses
Exodus 22:29ESV·traditional attribution

“You shall not delay to offer from the fullness of your harvest and from the outflow of your presses. The firstborn of your sons you shall give to me.

John Calvin Reformed @genevareformer

29. Thou shalt not delay. We may gather from this passage that the first-fruits were offered, to the end that the Israelites should devote themselves and their possessions to God; for Moses enjoins these two things in conjunction, that they should not delay to consecrate to God of the abundance of their fresh fruits, and their first-born.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A law against extortion in lending. 1. They must not receive use for money from any that borrowed for necessity (Exo 22:25), as in that case, Neh 5:5, Neh 5:7. And such provision the law made for the preservation of estates to their families by the year of jubilee that a people who had little concern in trade could not be supposed...

Commenting on Exodus 22:25-31

John Gill Reformed Baptist @doctorgill

And ye shall be holy men unto me,.... They were so by God's act of election, not special and particular, but general and national; choosing and separating them to be an holy people to him, above all the people on the face of the earth, and in a ceremonial sense they observing laws and appointments of God of this kind; which is the sense here...