This is where the greater thans come into play and seen more clearly...
Heb 6:13 For when God made promise to Abraham, because he could swear by no greater, he sware by himself,
John 10:29 My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand.
Heb 6:16 For men verily swear by the greater: and an oath for confirmation is to them an end of all strife.
Heb 6:17 Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath:
Heb 6:18 That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:
Heb 6:19 Which hope we haveas an anchor of the soul, both sure and stedfast, and which entereth into that within the veil;
Heb 6:20 Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec.
Heb 7:21 (For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec)
Heb 7:22 By so much was Jesus made a surety of a better testament.
Melchisedec his name...
Heb 7:2 ...First being by interpretation King of righteousness, and after that also King of Salem, which is, King of peace;
And of Christ...
Romans 3:21 But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets;
And likewise...
Ephes 2:14 For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us;