Thematic Bible: Being made without an oath

And as much as not without sacrifice sanctioned by solemn oath: (For they truly without sacrifice sanctioned by solemn oath became priests; but he with the sacrifice sanctioned by solemn oath by him, saying to him, The Lord sware, and will not repent, Thou priest forever, according to the order of Melchisedec:) According to this, Jesus has become security of a better covenant.