By faith Abraham, when he was tested, offered up Isaac: and he that had received the promises offered up his only begotten son.
All Commentaries on Hebrews 11:17 Go To Hebrews 11
Clement Of Rome
AD 99
On account of his faith and hospitality, a son was given him in his old age; and in the exercise of obedience, he offered him as a sacrifice to God on one of the mountains which He showed him.