Hebrews 6:13-20 - The Reliability Of God's Promise

¹³ For when God gave his promise to Abraham, because he could swear by no greater, he sware by himself, saying,

¹⁴ "surely I will heap blessings upon thee, and will give thee a numerous posterity."

¹⁵ and after he had patiently waited, he obtained what was promised. ¹⁶ for when men swear by a superior, the ratifying what they say with an oath, puts an end to all further debate. ¹⁷ wherefore God was willing to give the heirs of promise a stronger proof of the immutability of his counsel, by the intervention of an oath: ¹⁸ that by two immutable things in which it was impossible for God to deceive us, we, who have no other refuge to fly to, but to maintain our present hopes, ¹⁹ might have strong consolation to serve as a sure and stedfast anchor to the soul: till it arrives within the veil, ²⁰ where Jesus is gone to usher us in, having been made an high priest for ever, after the order of Melchisedec.