Leviticus 4:19

16 And the priest is to take some of its blood to the Tent of meeting;

17 And put his finger in the blood, shaking drops of the blood seven times before the Lord in front of the veil.

18 And he is to put some of the blood on the horns of the altar which is before the Lord in the Tent of meeting; and all the rest of the blood is to be drained out at the base of the altar of burned offering at the door of the Tent of meeting.

19 And he is to take off all its fat, burning it on the altar.

20 Let him do with the ox as he did with the ox of the sin-offering; and the priest will take away their sin and they will have forgiveness.

21 Then let the ox be taken away outside the tent-circle, that it may be burned as the other ox was burned; it is the sin-offering for all the people.

22 If a ruler does wrong, and in error does any of the things which, by the order of the Lord his God, are not to be done, causing sin to come on him;