Redemption Of First-Born
From BiblePortal Wikipedia
Easton's Bible Dictionary [1]
Numbers 3:11-13
The laws concerning this redemption of the first-born of man are recorded in Exodus 13:12-15; 22:29; 34:20; Numbers 3:45; 8:17; 18:16; Leviticus 12:2,4 .
The first-born male of every clean animal was to be given up to the priest for sacrifice ( Deuteronomy 12:6; Exodus 13:12; 34:20; Numbers 18:15-17 ).
But the first-born of unclean animals was either to be redeemed or sold and the price given to the priest ( Leviticus 27:11-13,27 ). The first-born of an ass, if not redeemed, was to be put to death ( Exodus 13:13; 34:20 ).