if his sin

Leviticus 4:14
when they become aware of the sin they have committed, then the assembly must bring a young bull as a sin offering and present it before the Tent of Meeting.

Leviticus 5:4
Or if someone swears thoughtlessly with his lips to do anything good or evil--in whatever matter a man may rashly pronounce an oath--even if he is unaware of it, when he later realizes it, he will be guilty.

2 Kings 22:10-13
Moreover, Shaphan the scribe told the king, "Hilkiah the priest has given me a book." And Shaphan read it in the presence of the king. . . .

a kid

Leviticus 9:3
Then speak to the Israelites and say, 'Take a male goat for a sin offering, a calf and a lamb, both a year old and without blemish, for a burnt offering,

Leviticus 23:19
You shall also prepare one male goat as a sin offering and two male lambs a year old as a peace offering.

Numbers 7:16, 22, 28, 34
one male goat for a sin offering; . . .

Numbers 15:24
and if it was done unintentionally without the knowledge of the congregation, then the whole congregation is to prepare one young bull as a burnt offering, a pleasing aroma to the LORD, with its grain offering and drink offering according to the regulation, and one male goat as a sin offering.

Numbers 28:15, 30
In addition to the regular burnt offering with its drink offering, one male goat is to be presented to the LORD as a sin offering. . . .

Numbers 29:5, 11, 16, 19
Include one male goat as a sin offering to make atonement for you. . . .

Romans 8:3
For what the Law was powerless to do in that it was weakened by the flesh, God did by sending His own Son in the likeness of sinful man, as an offering for sin. He thus condemned sin in the flesh,