John 13:3-5 - Jesus, knowing that the Father had given all things into His hands, and that He had come from God and was going to God, rose from supper and laid aside His garments, took a towel and girded Himself. After that, He poured water into a basin and began to wash the disciples’ feet, and to wipe them with the towel with which He was girded.
The verse above says that Jesus knew that the Father had given all things into his hands. Which means he had everything. He was secure. There’s nothing to “get”. He had all things in his hands. Out of this fullness, he served.
Out of this same fullness, secure people serve the best! When you know that you are right with God, not because you’re perfect, but because you are In Christ, then you will serve out of love instead of obligation. You will serve because you are a son or daughter of the king, instead of serving to try to get God to like you.
Good works are works done because you are right with God, not works done to try to be right with God.