Hebrews 11:17-19

Lamsa(i) 17 By faith Abraham, when he was tested, offered up Isaac: he lifted upon the altar his only begotten son, even that very one who had been received in the promise. 18 Of whom it was said, In Isaac shall thy seed be called: 19 And he reasoned in himself, It is possible for God even to raise the dead, and because of this Isaac was given to him as a parable.