Hebrews 11:17-19

BSB(i) 17 By faith Abraham, when he was tested, offered up Isaac on the altar. He who had received the promises was ready to offer his one and only son, 18 even though God had said to him, “Through Isaac your offspring will be reckoned.” 19 Abraham reasoned that God could raise the dead, and in a sense, he did receive Isaac back from death.