John Wesley on Leviticus 1:4

He shall put his hand - Both his hands, Lev 8:14,18, and Lev 16:21. Whereby he signified, that he willingly gave it to the Lord. That he judged himself worthy of that death which it suffered in his stead; and that he laid his sins upon it with an eye to him upon whom God would lay the iniquity of us all, Isa 53:6, and that together with it he did freely offer up himself to God. To make atonement - Sacramentally; as directing his faith and thoughts to that true propitiatory sacrifice which in time was to be offered up for him. And although burnt - offerings were commonly offered by way of thanksgiving; yet they were sometimes offered by way of atonement for sin, that is, for sins in general, as appears from Job 1:5, but for particular sins there were special sacrifices.