Leviticus 4:15

¹³And if the whole congregation of Israel trespass ignorantly, and a thing should escape the notice of the congregation, and they should do one thing forbidden of any of the commands of the Lord, which ought not to be done, and should transgress:

¹⁴and the sin wherein they have sinned should become known to them, then shall the congregation bring an unblemished calf of the herd for a sin offering, and they shall bring it to the doors of the tabernacle of witness.

— Leviticus 4:15 —

¹⁶And the anointed priest shall bring in of the blood of the calf into the tabernacle of witness.

¹⁷And the priest shall dip his finger into some of the blood of the calf, and shall sprinkle it seven times before the Lord, in front of the veil of the sanctuary.