Jesus uses vivid imagery to convey the ultimate reward for those who live in righteousness. The idea of shining like the sun signifies a state of purity, brilliance, and divine approval. This transformation is not just about external appearance but reflects an inner holiness and alignment with God's will. The kingdom of their Father refers to the eternal realm where God reigns supreme, a place of peace and joy for the faithful.
The phrase "whoever has ears, let them hear" is a call to attentiveness and discernment. It emphasizes the importance of truly understanding and internalizing Jesus' teachings. This message is a reminder that spiritual truths require more than just hearing; they require active listening and application in one's life. By living righteously, believers are promised a future where they will experience the fullness of God's presence and glory, a powerful encouragement to remain steadfast in faith.