Hebrews 11:17, 18, 19
Hebrews 11:17 NIV
By faith Abraham, when God tested him, offered Isaac as a sacrifice. He who had embraced the promises was about to sacrifice his one and only son
Hebrews 11:18 NIV
even though God had said to him, “It is through Isaac that your offspring will be reckoned.”
Hebrews 11:19 NIV
Abraham reasoned that God could even raise the dead, and so in a manner of speaking he did receive Isaac back from death.