19 All the firstling males that are born of thy herd and of thy flock thou shalt sanctify unto Jehovah thy God: thou shalt do no work with the firstling of thy herd, nor shear the firstling of thy flock. 20 Thou shalt eat it before Jehovah thy God year by year in the place which Jehovah shall choose, thou and thy household. 21 And if it have any blemish, [as if it be] lame or blind, any ill blemish whatsoever, thou shalt not sacrifice it unto Jehovah thy God. 22 Thou shalt eat it within thy gates: the unclean and the clean [shall eat it] alike, as the gazelle, and as the hart. 23 Only thou shalt not eat the blood thereof; thou shalt pour it out upon the ground as water.
Matthew Henry's Commentary on Deuteronomy 15:19-23
Commentary on Deuteronomy 15:19-23
(Read Deuteronomy 15:19-23)
Here is a direction what to do with the firstlings. We are not now limited as the Israelites were; we make no difference between a first calf, or lamb, and the rest. Let us then look to the gospel meaning of this law, devoting ourselves and the first of our time and strength to God; and using all our comforts and enjoyments to his praise, and under the direction of his law, as we have them all by his gift.