Amos 2:4 “Thus saith the LORD; For three transgressions of Judah, and for four, I will not turn away the punishment thereof; because they have despised the law of the LORD, and have not kept his commandments, and their lies caused them to err, after the which their fathers have walked:”
God made it clear that Judah hurt themselves by lying to themselves. Judah wanted to think they were better than how God saw them. The fact that Judah thought they were good enough didn't mean they were good because good is measured by God and not man. God said that their lies “caused them to err.” In other words, Judah lying to himself only caused him to go further into sin.
Sadly, most of us have found ourselves lying to ourselves in different areas, and the reason is because we don't want to believe that we are that bad. My friend, you and I are that bad. Romans 3:10 says, “There is none righteous, no, not one:” The only one you hurt by not being honest with yourself is you. You can lie to yourself and tell yourself that you are a good person, but that only results in you going further in sin. Let me share several areas where people lie to themselves.
First, people lie to themselves about their spirituality. Many think they are spiritual people, but if they truly looked at what they do compared to Christ, they would realize they are not that good. It is not how much you have grown that you need to look at; it is how much more you need to grow that you need to see. When you see how much more you need to grow as a believer, you will realize that you are not as spiritual as you think.
Second, many believers lie to themselves about their invulnerability to sin’s punishment. Nobody has ever gotten away with sin. It doesn't matter how much good you have done for God; your sin must be dealt with or else it will destroy you. God is not going to overlook your sin because of “how much you are doing for Him.” My friend, that is the lie of sin for which many have fallen.
Third, many believers lie to themselves about their ability to control their sin or vice. Nobody has ever controlled their sin; sin has simply let them believe that as it slowly takes them to their fall. Many have said, “I can quit at any time if I really want to.” My answer to anyone who says this; then quit your sin. What you are saying when you say that you can quit at any time but won't is that you are a rebel and that you don't care what God thinks about your sin. This is a very dangerous mindset to have. You cannot thumb your nose at God and think He won’t eventually chasten you.
Fourth, many believers lie to themselves about how much they are doing for God. If the truth is known, most of us could do more for God. The reason many believe they are doing much for the LORD is because they never keep records about what they are doing for Him. For example, many don't keep records of their daily walk with God in the Scriptures, how often they go soul winning, how faithful they are to church, or how they are doing in overcoming their besetting sin. You will find that if you keep records of what you are doing for God, you will see how little you are doing for Him. Are you lying to yourself? The only one you are hurting is yourself. Ask the Holy Spirit to show you how you are doing and correct what He shows you because He will reveal to you what you are not doing if you will be honest with yourself.