“Abraham did not seek to excuse himself from doing the will of God. During that three days’ journey he had sufficient time to reason, and to doubt God, if he was disposed to doubt… He might have pleaded that age should excuse him from obedience. But the patriarch did not take refuge in any of these excuses. Abraham was human; his passions and attachments were like ours; but he did not stop to question how the promise could be fulfilled if Isaac should be slain. He did not stay to reason with his aching heart. He knew that God is just and righteous in all His requirements, and he obeyed the command to the very letter.”

Patriarchs and Prophets p.153
by Ellen G. White