In Leviticus 9 and 16, the order is first to sacrifice for the high priest and his family and then for the people. Here the author switches the sequence, in which the phrase “for his own” gets emphasized. The atoning sacrifice or offering of purification is the opportunity offered by God to escape the deserved punishment and to again come to terms with him. The high priest himself is also dependent on this. He can only be very committed in his work of ministry. Because of his own weakness, he himself is also dependent on God’s grace, which causes him to perform his service in humility.1
3 Because of this he is obligated to offer sacrifice for his own sins just as he does for those of the people.