6 Bible Verses about Oaths, Divine

For God, when making a promise to Abraham, since He had no one greater by whom to swear, swore by Himself, saying, "Surely, blessing, I will bless you; and multiplying, I will multiply you."

For men swear by the greater; and the oath for confirmation is an end, to them, of every dispute: wherein God, more abundantly willing to show to the heirs of the promise the immutability of His counsel, interposed with an oath; that, through two immutable facts, in which it is impossible that God should lie, we may have strong encouragement, who fled for refuge to lay hold of the hope set before us;

to show mercy towards our fathers, and to remember His holy covenant; the oath which He swore to Abraham, our father;

being, therefore, a prophet, and knowing that with an oath God swore to him, that out of the fruit of his loins One should sit on his throne;

for it is testified of Him, "Thou art a Priest forever according to the rank of Melchizedek." For there is verily an annulling of a previous commandment, on account of its weakness and unprofitableness (for the law perfected nothing), and a bringing in of a better hope, through which we draw near to God.read more.
And inasmuch as it was not without the taking of an oath (for they, indeed, have been made priests without an oath; but He with an oath through Him Who said to Him, "The Lord swore, and will not repent, Thou art a Priest forever"); by so much also hath Jesus become the surety of a better covenant. And they, indeed, have been made priests many in number, because by death they are hindered from continuing; but He, because of His abiding forever, hath His priesthood unchangeable. Whence also He is able to save completely those who come to God through Him, since He is ever living to intercede in their behalf. For such a High Priest was befitting us, holy, harmless, undefiled, separated from sinners, and made higher than the heavens; Who hath no necessity daily, as the high priests, to offer up sacrifices, first for his own sins, and then for those of the people (for this He did once for all, when He offered up Himself); for the law constitutes men high priests who have infirmity, but the word of the oath, which was after the law, constitutes the Son perfected forever.

Wherefore, I was displeased with that generation, and said, 'They do always err in their heart, and they did not know My ways; as I swore in My wrath, they shall not enter into My rest.'"