Gen 22

:8 Abraham answered, "God himself will provide the lamb for the burnt offering, my son." And the two of them went on together.

→ Issac is a promised Son from God that to inherit Abraham’s blessings and to keep carry on. Thus, Abrahams’ test was actually God vs. God.

:19 Then Abraham returned to his servants, and they set off together for Beersheba. And Abraham stayed in Beersheba.

→ Abraham alone? Where is Issac?