Jesus is the light.

[Jhn 3:19-21 NASB] 19 “This is the judgment, that the Light has come into the world, and men loved the darkness rather than the Light, for their deeds were evil. 20 “For everyone who does evil hates the Light, and does not come to the Light for fear that his deeds will be exposed. 21 “But he who practices the truth comes to the Light, so that his deeds may be manifested as having been wrought in God.”

[Jhn 1:4-5, 9-13 NASB] 4 In Him was life, and the life was the Light of men. 5 The Light shines in the darkness, and the darkness did not comprehend it. … 9 There was the true Light which, coming into the world, enlightens every man. 10 He was in the world, and the world was made through Him, and the world did not know Him. 11 He came to His own, and those who were His own did not receive Him. 12 But as many as received Him, to them He gave the right to become children of God, [even] to those who believe in His name, 13 who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.

Jesus is the Light.  Everyone who does evil hates Jesus.  Those who are doing the will of God, as worked in them by God, are the ones practicing the truth.  They come to Jesus.  Jesus makes us alive.  Death does not understand life.  Death is the wages of sin.  The sinful world of death is dark.  Those who dwell in darkness, sin, and death, do not recognize, or know Jesus/life/light.  He came to the chosen nation first.  Most of them rejected him.  As many as did not reject him, but instead received him, became children of God through adoption.  They didn’t do this from their own effort/traditions/sacrifices, or by their heritage as descendants of the patriarchs, or their circumcision of the flesh, but instead it was due to the will of God electing them in eternity past that they are regenerated to eternal life.