Without Jesus in our lives, we would live in darkness. Many sinners today live in darkness because they reject the light of Jesus; which is salvation. John 3:19 says:
And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. Jesus is the only cure for the darkness in your life.
John 1:1-18- In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not. There was a man sent from God, whose name was John. The same came for a witness, to bear witness of the Light, that all men through him might believe. He was not that Light, but was sent to bear witness of that Light. That was the true Light, which lighteth every man that cometh into the world. He was in the world, and the world was made by him, and the world knew him not. He came unto his own, and his own received him not. But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God. And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth. John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh after me is preferred before me: for he was before me. And of his fulness have all we received, and grace for grace. For the law was given by Moses, but grace and truth came by Jesus Christ. No man hath seen God at any time, the only begotten Son, which is in the bosom of the Father, he hath declared him.
Related scriptures: Genesis 1:4-And God saw the light, that it was good: and God divided the light from the darkness.
Proverbs 4:19-The way of the wicked is as darkness: they know not at what they stumble.
Isaiah 5:20-Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!
John 1:5-And the light shineth in darkness; and the darkness comprehended it not.
John 8:12-Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.
Acts 26:18-To open their eyes, and to turn them from darkness to light, and from the power of Satan unto God, that they may receive forgiveness of sins, and inheritance among them which are sanctified by faith that is in me.
2 Corinthians 4:6-For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ.
2 Corinthians 6:14-Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
Ephesians 5:8-For ye were sometimes darkness, but now are ye light in the Lord: walk as children of light:
1 Peter 2:9-But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light;