Hebrews 6:13-20 - The Reliability Of God's Promise
13 For [when] God made a promise to Abraham, since he had no one greater to swear by, he swore by himself,
14 saying, "Surely {I will greatly bless} you, and {I will greatly multiply} you."
15 And so, [by] persevering, he obtained the promise. 16 For people swear by what is greater [than themselves], and the oath for confirmation [is the] end of all dispute for them. 17 In the same way God, [because he] wanted to show even more to the heirs of the promise the unchangeableness of his resolve, guaranteed [it] with an oath, 18 in order that through two unchangeable things, in which [it is] impossible for God to lie, we who have taken refuge may have powerful encouragement to hold fast to the hope set before [us], 19 which we have like an anchor of the soul, both firm and steadfast, and entering into the inside of the curtain, 20 where Jesus, the forerunner for us, entered, [because he] became a high priest {forever} according to the order of Melchizedek.