Hebrews 11:17-19

Hebrews 11:17-19. 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.

However puzzled Abraham may have been by the command to offer up the son in whom his seed was to be called, his plain duty was to obey that command, and to leave the Lord to fulfill his own promise in his own way. Perhaps he had also learned, through his mistake concerning Ishmael, that God’s way of fulfilling his promise might not be his way, and that God’s way was always best.