No darkness at all

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. If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin. - 1 John 1v5-7

I guess there can not be a greater contrast than light and darkness. They simply both cannot exist in the same place at the same time. Even in the darkest darkness light will diffuse and it and give a bit of light. Light and darkness are incompatible.

In physical terms there are times when light will not totally wipe out the darkness though. If the light is dim there will still be a dullness and there may be dark corners where the light does very little to dispel it.

God however is pure light. He defines light. When God’s light shines there is no darkness at all. It dispels the darkness in even the farthest corner because His light source is omnipresent. Those who claim to walk in His light have no business walking in darkness. In fact, if we are in His light we cannot walk in darkness. Our lifestyle cannot be one of walking in the darkness of the world. From the following verses we can see that this does not mean we are sinless. The point is that we cannot continue to walk in darkness if we are walking in His light. Our walking in His light gives us the opportunity to have real fellowship with each other and is the proof that we have been cleansed in Jesus; blood.

We live in a dark, dark world. We have no business walking in that darkness.