Exodus 13:11-13

11“When the Lord brings you into the land of the Canaanites, aas he swore to you and your fathers, and shall give it to you, 12 byou shall set apart to the Lord all that first opens the womb. All the firstborn of your animals that are males shall be the Lord’s. 13 cEvery firstborn of a donkey you shall redeem with a lamb, or if you will not redeem it you shall break its neck. Every dfirstborn of man among your sons you shall redeem.
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