Hebrews 6:16-19

When anyone wants to settle an argument, they make a vow by using the name of someone or something greater than themselves. So when God wanted to prove for certain his promise to his people could not be broken, he made a vow. God cannot tell lies! And so his promises and vows are two things that can never be changed. We have run to God for safety. Now his promises should greatly encourage us to take hold of the hope that is right in front of us. This hope is like a firm and steady anchor for our souls. In fact, hope reaches behind the curtain and into the most holy place.