Hebrews 6:18; Hebrews 10:1; Hebrews 11:1

Hebrews 6:18

18 God did this so that, by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope set before us may be greatly encouraged.

Hebrews 10:1

1 The law is only a shadow of the good things that are coming—not the realities themselves. For this reason it can never, by the same sacrifices repeated endlessly year after year, make perfect those who draw near to worship.

Hebrews 11:1

1 Now faith is confidence in what we hope for and assurance about what we do not see.