13 And every firstling of an ass thou shalt redeem with a lamb; and if thou wilt not redeem it, then thou shalt break his neck: and all the first-born of man among thy children shalt thou redeem.
Exodus 13:13 Cross References - Webster
Exodus 12:3
3 Speak ye to all the congregation of Israel, saying, In the tenth day of this month they shall take to them every man a lamb, according to the house of their fathers, a lamb for a house:
Exodus 12:21
21 Then Moses called for all the elders of Israel, and said to them, Draw out, and take you a lamb, according to your families, and kill the passover.
Exodus 34:20
20 But the firstling of an ass thou shalt redeem with a lamb: and if thou shalt not redeem him, then shalt thou break his neck. All the first-born of thy sons thou shalt redeem. And none shall appear before me empty.
Numbers 3:46-51
46 And for those that are to be redeemed of the two hundred and seventy and three, of the first-born of the children of Israel, which are more than the Levites:
47 Thou shalt even take five shekels apiece by the poll, after the shekel of the sanctuary shalt thou take them: the shekel is twenty gerahs.
48 And thou shalt give to Aaron and to his sons the money, with which the odd number of them is to be redeemed.
49 And Moses took the redemption-money of them that were over and above them that were redeemed by the Levites:
50 Of the first-born of the children of Israel he took the money; a thousand three hundred and sixty and five shekels, after the shekel of the sanctuary.
51 And Moses gave the money of them that were redeemed to Aaron, and to his sons, according to the word of the LORD, as the LORD commanded Moses.
Numbers 18:15-17
15 Every thing that openeth the matrix in all flesh, which they bring to the LORD, whether of men or beast, shall be thine: nevertheless, the first born of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.
16 And those that are to be redeemed from a month old shalt thou redeem, according to thy estimation, for the money of five shekels, after the shekel of the sanctuary, which is twenty gerahs.
17 But the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou shalt not redeem; they are holy: thou shalt sprinkle their blood upon the altar, and shalt burn their fat for an offering made by fire, for a sweet savor to the LORD.
Revelation 14:4
4 These are they who were not defiled with women; for they are virgins. These are they who follow the Lamb whithersoever he goeth. These were redeemed from among men, being the first-fruits to God and to the Lamb.