Exodus 13:12-15 That you shall set apart unto the Lord all that opens the womb, and every firstborn that comes of a animal which you have the males shall be the Lord's.

CKJV_Strongs⁽ⁱ⁾

12 H5674 That you shall set apart H3068 unto the Lord H6363 all that opens H7358 the womb, H6363 and every firstborn H7698 that comes H929 of a animal H2145 which you have the males H3068 shall be the Lord's.

13 H6363 And every firstborn H2543 of an donkey H6299 you shall redeem H7716 with a lamb; H6299 and if you will not redeem H6202 it, then you shall break his neck: H1060 and all the firstborn H120 of man H1121 among your sons H6299 shall you redeem.

14 H1121 And it shall be when your son H7592 asks H4279 you in time to come, H559 saying, H559 What is this? that you shall say H2392 unto him, By strength H3027 of hand H3068 the Lord H3318 brought us out H4714 from Egypt, H1004 from the house H5650 of bondage:

15 H6547 And it came to pass, when Pharaoh H7185 would hardly H7971 let us go, H3068 that the Lord H2026 killed H1060 all the firstborn H776 in the land H4714 of Egypt, H1060 both the firstborn H120 of man, H1060 and the firstborn H929 of animal: H2076 therefore I sacrifice H3068 to the Lord H6363 all that opens H7358 the womb, H2145 being males; H1060 but all the firstborn H1121 of my sons H6299 I redeem.