C.H. Spurgeon emphasizes the importance of faithfulness in doing good, even when immediate rewards are not visible. He draws a parallel between casting seed upon the waters and the eventual harvest that follows, encouraging believers to invest in the lives of others without expecting immediate returns. Spurgeon reassures that God's promises are steadfast, and while we may not see the fruits of our labor right away, we can trust that they will come in due time. He urges the congregation to remain patient and steadfast in their efforts, reminding them that no labor in the Lord is in vain.

William MacDonald emphasizes the importance of patience in the Christian life through the metaphor of casting bread upon the waters, illustrating that spiritual results often take time to manifest. He contrasts the instant gratification of modern society with the gradual process of spiritual growth and service, reminding us that kindness, prayers, and efforts may not yield immediate results. MacDonald encourages believers to remain steadfast in their service, trusting that their labor is not in vain and that the true harvest will be revealed in due time, especially in heaven. He highlights the agricultural cycle as a biblical principle for understanding spiritual service, urging patience and perseverance in our Christian walk.