Moses
Deuteronomy 15:20BSB·traditional attribution

Each year you and your household are to eat it before the LORD your God in the place the LORD will choose.

Matthew Henry Presbyterian @wholebiblehenry

Here is, 1. A repetition of the law concerning the firstlings of their cattle, that, if they were males, they were to be sanctified to the Lord (Deu 15:19), in remembrance of, and in thankfulness for, the sparing of the first-born of Israel, when the first-born of the Egyptians, both of man and beast, were slain by the destroying angel (Exo 13:2, Exo 13:15); on...

Commenting on Deuteronomy 15:19-23

John Gill Reformed Baptist @doctorgill

Thou shalt eat it before the Lord thy God, year by year,.... Which, if understood of male firstlings, as in connection with the preceding verse, only priests might eat of them, being devoted to the Lord; so Jarchi says, to the priest he speaks; but if this respects the Israelites in common, then they must be understood either of female firstlings or second firstlings, which...

Keil & Delitzsch Lutheran @keilanddelitzsch

Deu 15:19-23 Application of the first-born of Cattle. - From the laws respecting the poor and slaves, to which the instructions concerning the tithes (Deu 14:22-29) had given occasion, Moses returns to appropriation of the first-born of the herd and flock to sacrificial meals, which he had already touched upon in Deu 12:6, Deu 12:17, and Deu 14:23, and concludes by an explanation upon this point.

Commenting on Deuteronomy 15:19-23