Marty's mother often told him, "Never get greedy with God," which he interpreted as a warning to be content with what one has. It suggests that people should appreciate their blessings without constantly seeking more. This advice encourages gratitude and humility, emphasizing the importance of recognizing and valuing what is already present in life.

From her words, Marty learned to avoid excessive desires, understanding that asking for more beyond what is necessary might lead to dissatisfaction. The quote reflects a spiritual perspective on moderation and thankfulness, reminding individuals to focus on appreciating their current blessings instead of chasing after endless wants. This lesson resonates with themes of gratitude and contentment found in the context of the story in The Christmas Wedding by James Patterson.