It is not a vain thing to serve God. There is a priceless reward for those who devote their life to His service.—Testimonies for the Church 4:107. ChS 266.1
Every sacrifice that is made in His ministry will be recompensed according to “the exceeding riches of His grace.”—The Desire of Ages, 249. ChS 266.2
Our reward for working with Christ in this world is the greater power and wider privilege of working with Him in the world to come.—Christ's Object Lessons, 361. ChS 266.3