19 Abraham reasoned that God could even raise the dead, and so in a manner of speaking he did receive Isaac back from death.

Read Hebrews 11:19 Using Other Translations

Accounting that God was able to raise him up, even from the dead; from whence also he received him in a figure.
He considered that God was able even to raise him from the dead, from which, figuratively speaking, he did receive him back.
Abraham reasoned that if Isaac died, God was able to bring him back to life again. And in a sense, Abraham did receive his son back from the dead.