God's work and glory is to help each one of us attain eternal glory and live forever with him. He serves us each and every day. He blesses us with life and love and all that we have. He asks us to serve him. How can one serve a God? What would he need from us. The greatest thing we can give God is our love for him and for those he loves.
“I tell you these things that ye may learn wisdom; that ye may learn that when ye are in the service of your fellow beings ye are only in the service of your God.”