Isaac And Rebekah, Forever

When Isaac And Rebekah, Forever enters the battlefield, create a 2/2 white Human creature
token named Isaac and a 2/2 white Human
creature token named Rebekah. Both of those
tokens gain: "Whenever this creature attacks or blocks, you gain 1 life."
As long as you control both Isaac and Rebekah, creatures you control get +1/+1.
... and she became his wife; and he loved her ...-
Gen 24:67