19 “All the firstborn males that are born of your herd and flock you shall dedicate to the Lord your God. You shall do no work with the firstborn of your herd, nor shear the firstborn of your flock. 20 You shall eat it, you and your household, before the Lord your God year by year at the place that the Lord will choose. 21 But if it has any blemish, if it is lame or blind or has any serious blemish whatever, you shall not sacrifice it to the Lord your God. 22 You shall eat it within your towns. The unclean and the clean alike may eat it, as though it were a gazelle or a deer. 23 Only you shall not eat its blood; you shall pour it out on the ground like water.

Passover

16 “Observe the month of Abib and keep the Passover to the Lord your God, for in the month of Abib the Lord your God brought you out of Egypt by night. 2 And you shall offer the Passover sacrifice to the Lord your God, from the flock or the herd, at the place that the Lord will choose, to make his name dwell there.