What can I possibly give God?

The Lord doesn't need anything that we have but there are things He still wants us to give Him. Is our service to God coming naturally to us? After all He wants our worship because not only does He deserve it but it strengthens us. Outside of our worship we can give to God our helping out of other people in their necessity . We should be willing to yield our bodies back to God as a living sacrifice and even give Him whatever is keeping us from going all out for Him. What do we need to give to God?