R.A. Torrey emphasizes how God rewards His servants, illustrating that sacrifices made for Christ are never in vain. He explains that true service is not about the quantity of work done but the quality and heart behind it, as demonstrated in the parable of the laborers in the vineyard. The sermon highlights that God's grace often exceeds our expectations, and those who serve out of love will receive abundant rewards, regardless of when they begin their service. Torrey warns against the dangers of envy and murmuring when comparing our rewards to others, reminding us that God is sovereign and just in His dealings. Ultimately, the message encourages believers to trust in God's goodness and to serve faithfully, knowing that their efforts will be rewarded in His perfect timing.