but Jesus became a priest when God took an oath. God said about him, “The Lord has taken an oath and will not change his mind. You are a priest forever.”
God is not like people. He tells no lies. He is not like humans. He doesn’t change his mind. When he says something, he does it. When he makes a promise, he keeps it.
Moses’ Teachings designated mortals as chief priests even though they had weaknesses. But God’s promise, which came after Moses’ Teachings, designated the Son who forever accomplished everything that God required.