1 John 1:5 says, “This is the message which we have heard from Him and declare to you, that God is light and in Him is no darkness at all.” God is holy, therefore no darkness can come near Him.
In the sermon on the mount, Jesus gave a charge about being light. Matthew 5:14 says, “You are the light of the world. A city that is set on a hill cannot be hid. Verse 16 says, “Let your light so shine before men, that they may see your good works and glorify your Father in heaven.”
John 3:19 says, “And this is the condemnation, that the light has come into the world, and men loved darkness rather than light, because their deeds are evil.” They hate the darkness because it exposes their evil deeds.
Verse 21 says, “But he who does the truth comes to the light, that his deeds may be clearly seen, that they have been done in God.” The Lord sees everything. Psalm 139:12 says, “…the darkness and the light are both alive to You.” Nothing is hidden.