Hebrews 6:12-16

12so that you may not be sluggish, but imitators of those who through faith and patience inherit the promises.

13For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself,

14saying, "Surely I will bless you and multiply you."

15And thus Abraham, having patiently waited, obtained the promise.

16For people swear by something greater than themselves, and in all their disputes an oath is final for confirmation.