Pastor Jerry Eze's sermon, "MY JOY IS FULL SERVICE," centers on the theme of joy as a spiritual state, independent of circumstances. The sermon emphasizes achieving a joyful state through faith and prayer, connecting it to spiritual well-being and God's provision. It incorporates scriptural references, particularly from 1 Samuel, to illustrate the transformative power of joy. Pastor Eze encourages active participation, prompting listeners to declare their joy and pray for its increase. The sermon concludes with a call to action, urging listeners to embrace and share their joy.