The central message of the sermon is that wisdom is a valuable and essential aspect of life, not because it earns us God's favor through good deeds or gratitude, but because it helps us understand cause and effect in our lives. Wisdom teaches us how to conduct ourselves in a way that deserves blessing, which in turn allows us to experience mercy and grace from God. The sermon advances the belief that human responsibility is intertwined with God's sovereignty, and that our choices have consequences, both good and bad. The takeaway the teacher wants listeners to understand is that wisdom is not just about doing the right thing, but also about living with a sense of humility and awareness of God's larger plan in our lives.