Exodus 29:10

10“Then you shall bring the bull before the Tent of Meeting, and Aaron and his sons shall 29:10 By laying his hands on the head of the sacrifice the offerer identified himself with it and through its death it became an atonement or covering for his sin. Because the sacrifice “covered” his sin it placed the offerer in a right relationship with God, just as later under the new covenant the perfection and sacrifice of the Christ would cover (atone for) the imperfection and sin of those who identified with Him and accepted Him as Savior.lay their hands on the bull’s head.