John 1:4-5 (ESV) In him was life, and the life was the light of men. The light shines in the darkness, and the darkness has not overcome it.
Jesus Christ has always been. There was never a time when He was not in existence. He made all things, to include us, and He holds all things together, including our lives. One day, He stepped down into this world, our world, from the perfection of heaven in the darkness.
But because Jesus is the light of all the world, the darkness could not overcome Him. It didn’t stand a chance against the Son of God. He is the true light and in Him is found grace and truth.
Can any darkness exist in a place where light shines? Can any aspect of life remain dark where Christ is Lord? Apply this to your life. Submit to the lordship of Jesus, committing all areas of your life to Him, and He will prevail.