For every high priest chosen from among men is appointed to represent men in things pertaining to God, that he may offer both gifts and sacrifices for sins.
Take Aaron and his sons with him, and the garments, and the anointing oil, and a bull for the sin offering, and two rams, and a basket of unleavened bread,
Then Moses said to Aaron, “Go to the altar, and offer your sin offering and your burnt offering, and make atonement for yourself and for the people, and offer the sacrifice of the people, and make atonement for them, as the Lord commanded.”
By faith Abel offered to God a more excellent sacrifice than Cain offered. Through this he was approved as righteous, with God testifying concerning his gifts. He still speaks through his faith, though he is dead.
Therefore, in all things it was necessary for Him to be made like His brothers, so that He might be a merciful and faithful High Priest in the things pertaining to God, to make atonement for the sins of the people.
Unlike those high priests, He does not need to offer daily sacrifices—first for His own sins and then for the people’s, for He did this once for all when He offered up Himself.