Jesus says that whenever a lost son or daughter comes home to the Father, when they find complete satisfaction and fullness of life in His presence, heaven throws a party to celebrate. That’s the joy of the Father. And the call to “be fruitful and multiply” is an invitation to share and experience the same joy that God Himself experiences when His love invades a broken life and makes it whole, when he takes a life that is empty and fills it with Himself.
If that is what excites God, if that is what gives GOD the greatest joy, then that must be the greatest joy that we could ever experience! The greatest blessings are not the temporary riches that God can give to us. The greatest blessings are the eternal riches that God will give to countless numbers of people thru us.