Hebrews 6:15-17

International Standard Version

¹⁵ And so he obtained what he had been promised, because he patiently waited for it. ¹⁶ For people swear by someone greater than themselves, and an oath given as confirmation puts an end to all argument. ¹⁷ In the same way, when God wanted to make the unchangeable character of his purpose perfectly clear to the heirs of his promise, he guaranteed it with an oath,