Hebrews 11:18

of whom it was said, "In Isaac your seed shall be called,"

Surrounding context

11:17 By faith Abraham, when he was tested, offered up Isaac, and he who had received the promises offered up his only begotten son,

11:18 of whom it was said, "In Isaac your seed shall be called,"

11:19 concluding that God was able to raise him up, even from the dead, from which he also received him in a figurative sense.

Translation and sources