Hebrews 11:1, 17, 19

Faith means being sure of the things we hope for and knowing that something is real even if we do not see it.

It was by faith that Abraham, when God tested him, offered his son Isaac as a sacrifice. God made the promises to Abraham, but Abraham was ready to offer his own son as a sacrifice.

Abraham believed that God could raise the dead, and really, it was as if Abraham got Isaac back from death.