"And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God."
The world around us is filled with people who are living in sin. Sometimes that sin is open and obvious. Other times it is hidden from public view. In either case, that sin is there for a reason, and the reason is that people like it that way. Because of the fallen nature of every man and woman who is born into this world, we have an appetite and desire for sin. Given the choice, people will choose the darkness of sin over the light of the truth, rather than having to confront the reality of sin and the penalty for sin—and even more to avoid having to change.
So often we hear the idea that if people knew better they would do better. This leads to the notion that we can educate people to perfection. But the problem is not a lack of knowledge, but a lack of desire for what is good. Peter described this characteristic well: “For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water” (2 Peter 3:5). Often times, people simply don't want to know the truth. When that is the case, all the education in the world won't change that.
The opening of our eyes at salvation gives us a different perspective. Paul wrote, “But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned” (1 Corinthians 2:14).
Only through the Holy Spirit can we develop a desire for the light and truth of God's Word.