Light and joy are promised to those who live righteously and with integrity. Light in this context represents God's guidance, wisdom, and presence, illuminating the path of those who choose to live according to His ways. It suggests that the righteous will not be left in darkness or confusion but will have clarity and direction in their lives. Joy, which accompanies the upright in heart, is a deep, abiding sense of happiness and peace that transcends circumstances. It is a joy rooted in the assurance of God's love and the fulfillment that comes from living a life that pleases Him.
This verse reassures believers that their efforts to live righteously are not in vain. It highlights the spiritual rewards that come from a life of integrity and faithfulness. The promise of light and joy serves as an encouragement to continue pursuing a life that reflects God's character, knowing that such a life is blessed with His presence and filled with true joy. It is a reminder that righteousness leads to a deeper connection with God and a more profound sense of peace and happiness.