Hebrews 11:17-20 KJV
By faith Abraham, when he was tried, offered up Isaac: and he that had received the promises offered up his only begotten son,
Of whom it was said, That in Isaac shall thy seed be called:
Accounting that God was able to raise him up, even from the dead; from whence also he received him in a figure.
By faith Isaac blessed Jacob and Esau concerning things to come.