As Christians, we don’t discipline ourselves to serve out of obligation or duty.  We allow Jesus to lead us into a rhythm of walking in the good works that He will do in us and through us, and we get to experience our intimate relationship with Him as He expresses His Life through us.  

Ephesians 2:10... For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.

Richard Foster says “True service comes from a relationship with the divine Other deep inside.  We serve out of whispered promptings, divine urgings.  Energy is expended but it is not the frantic energy of the flesh.”

Steve McVey writes, "The enemy has fooled many into thinking spiritual service is their gift to God. But good works are not our gifts to God but rather his gifts to us! Our heavenly Father has a plan to do some wonderful things in this world and, because of his great love for us, he has chosen to allow us to participate in that work. He doesn't need us to do the work.  He chooses to do the work through us because he loves us. Those who believe that Christian service is the way we are obligated to glorify God will never clearly see his lovely face smiling at them with pride. They will forever be caught in a performance trap, wondering if they are doing enough."

https://thegraceblog.com/blog