Once you have seen the light of truth, you can never again believe the lie.

A few years ago, I was in my hometown visiting family. During my visit, the subject of people driving the wrong way through a well-known one-way alleyway. As we discussed this common vexation, it became apparent that there was disagreement on the correct direction for the alley. So the next day, we went to see for ourselves which way was the right way. To my great dismay, the direction I had believed was the right direction was the wrong way.

The right and wrong way had not changed. What changed was that I had come to know the truth. I could no longer arrogantly go the wrong way, confident that I was right and indignant at others going the other direction. I had seen the light and knew the truth; from that day forward, I have only driven the right way.

Jesus is the light of truth. He gives understanding to what is right and wrong, true and false, and life and death.

It is not that a Christian no longer struggles with sin and temptation, but those who are in Christ no longer welcome, make plans for, invite, or love sin. It is impossible to love Jesus, be transformed by grace, and willfully remain in sin.