Leviticus 4:13-17

‘Now if the entire congregation of Israel does wrong unintentionally and the matter escapes the notice of the assembly, and they commit any of the things which the Lord has commanded not to be done, and they become guilty;

when the sin which they have committed becomes known, then the assembly shall offer a bull of the herd as a sin offering and bring it in front of the tent of meeting.

Then the elders of the congregation shall lay their hands on the head of the bull before the Lord, and the bull shall be slaughtered before the Lord.

Then the anointed priest is to bring some of the blood of the bull to the tent of meeting;

and the priest shall dip his finger in the blood and sprinkle it seven times before the Lord, in front of the veil.