of an ass

Exodus 34:20
You must redeem the firstborn of a donkey with a lamb; but if you do not redeem it, break its neck. You must redeem all the firstborn of your sons. No one shall appear before Me empty-handed.

Numbers 18:15-17
The firstborn of every womb, whether man or beast, that is offered to the LORD belongs to you. But you must surely redeem every firstborn son and every firstborn male of unclean animals. . . .

lamb, or kid

Exodus 12:3, 21
Tell the whole congregation of Israel that on the tenth day of this month, each man must select a lamb for his family, one per household. . . .

shalt thou

Numbers 3:46-51
To redeem the 273 firstborn Israelites who outnumber the Levites, . . .

Numbers 18:15, 16
The firstborn of every womb, whether man or beast, that is offered to the LORD belongs to you. But you must surely redeem every firstborn son and every firstborn male of unclean animals. . . .

Revelation 14:4
These are the ones who have not been defiled with women, for they are virgins. They follow the Lamb wherever He goes. They have been redeemed from among men as firstfruits to God and to the Lamb.