Abraham demonstrates a "resurrection-caliber" faith in his obedience to the Lord. He believes that the Lord is able to bring Isaac back to life from the dead.
This is important to us today, because we too are asked to have this same faith. We demonstrate it by what we believe about the Cross and Jesus' death and resurrection. Also, we need this regarding our OWN disposition after we die. Does God have the power to raise people from the dead? Listen 7 minutes.