Hebrews 7:19-25

ISV(i) 19 since the Law made nothing perfect, and a better hope is presented, by which we approach God.
20 Now none of this happened without an oath. Others became priests without any oath, 21 but Jesus became a priest with an oath when God told him, “The Lord has taken an oath and will not change his mind. You are a priest forever.” 22 In this way, Jesus has become the guarantor of a better covenant.
23 There have been many priests, since each one of them had to stop serving in office when he died. 24 But because Jesus lives forever, he has a permanent priesthood. 25 Therefore, because he always lives to intercede for them, he is able to save completely those who come to God through him.