Hebrews 11:1, 17, 19
Hebrews 11:1 NASB1995
Now faith is the assurance of things hoped for, the conviction of things not seen.
Hebrews 11:17 NASB1995
By faith Abraham, when he was tested, offered up Isaac, and he who had received the promises was offering up his only begotten son
Hebrews 11:19 NASB1995
He considered that God is able to raise people even from the dead, from which he also received him back as a type.