12 “Then the Levites are to lay their hands on the heads of the bulls, using one for a sin offering to the LORD and the other for a burnt offering, to make atonement for the Levites.

Read Numbers 8:12 Using Other Translations

And the Levites shall lay their hands upon the heads of the bullocks: and thou shalt offer the one for a sin offering, and the other for a burnt offering, unto the LORD, to make an atonement for the Levites.
Then the Levites shall lay their hands on the heads of the bulls, and you shall offer the one for a sin offering and the other for a burnt offering to the LORD to make atonement for the Levites.
“Next the Levites will lay their hands on the heads of the young bulls. Present one as a sin offering and the other as a burnt offering to the LORD, to purify the Levites and make them right with the LORD .