Our first reading today tells us how much we must love our neighbor. The Gospel tells us how much we mut love God.
We love by replying fully to the value we see in another.
In other people we see a value equal to what God has imbedded in us. That value requires us to respond with a love equal to that which our value requires of us.
In God we see a value exceeding that of our parents and of all else that is wonderful in this world of ours. In fitly responding to that limitless value of God, we we must love him more than all else..