Hebrews 6:17-18
Context6:17 In the same way 1 God wanted to demonstrate more clearly to the heirs of the promise that his purpose was unchangeable, 2 and so he intervened with an oath, 6:18 so that we who have found refuge in him 3 may find strong encouragement to hold fast to the hope set before us through two unchangeable things, since it is impossible for God to lie.