Matthew 13:43: Then shall the righteous shine forth as the sun in the kingdom of their Father. Who hath hears to hear, let him hear.
Everyone who believes in Christ and has accepted Him as their personal Lord and Savior have been made righteous by Christ. Our good deeds do not qualify us for righteousness because they are like filthy rags before God. We were granted righteousness when we chose to believe that His blood has cleansed us from all sin. Such people are the ones who will be shining as the sun in the kingdom of God.
The sun is one of the most majestic creation of God. He shines forth brightly in his power and is all radiant dispelling darkness. The righteous will shine forth without any clouds of darkness in God’s kingdom. There will be no more pain, no more sorrow. Life in the kingdom of God is abundant joy and happiness. The righteous when on earth are bullied and face a lot of struggles and go through reproaches and shame. Sometimes, their walk of faith is questioned too. Many challenges are thrown before them in their everyday life, yet with God on their side they do valiantly. After having undergone everything here on earth, the kingdom of God has a big reward awaiting them and that is for them to shine like the sun.
Earthly pain and suffering for the righteous are momentary, but their glory in the kingdom of God is forever and ever shining like the sun.