When God made his promise to Abraham, since there was no one greater for him to swear by, he swore by himself,414
saying, "I will surely bless you and give you many descendants."a515
And so after waiting patiently, Abraham received what was promised.616
Men swear by someone greater than themselves, and the oath confirms what is said and puts an end to all argument.717
Because God wanted to make the unchanging8 nature of his purpose very clear to the heirs of what was promised,9 he confirmed it with an oath.
God did this so that, by two unchangeable things in which it is impossible for God to lie,10 we who have fled to take hold of the hope11 offered to us may be greatly encouraged.
We have this hope as an anchor for the soul, firm and secure. It enters the inner sanctuary behind the curtain,1220
where Jesus, who went before us, has entered on our behalf.13 He has become a high priest14 forever, in the order of Melchizedek.15