Genesis 22:7-11

Isaac said to Abraham his father, “Father?” “Yes, my son.” “We have flint and wood, but where’s the sheep for the burnt offering?” Abraham said, “Son, God will see to it that there’s a sheep for the burnt offering.” And they kept on walking together. They arrived at the place to which God had directed him. Abraham built an altar. He laid out the wood. Then he tied up Isaac and laid him on the wood. Abraham reached out and took the knife to kill his son. Just then an angel of GOD called to him out of Heaven, “Abraham! Abraham!” “Yes, I’m listening.”