No doubt you have heard things like "let your conscience be your guide," or "if it seems right then it must be right," or "no one can have a good conscience while doing something wrong." To find out if these statements are true we must go to the source of all authority and that is the teaching of Jesus Christ and His inspired Word, the Bible. I believe it is true that our conscience should help guide us through life but we need to understand that our conscience is only as accurate as it has been taught. Just because we think something is right, it may not necessarily be so. The apostle Paul said: "Indeed, I myself thought I must do many things contrary to the name of Jesus of Nazareth" (Acts 26:9). We know that while he was doing these contrary things that he was doing them in "good conscience". "Then Paul, looking earnestly at the council, said, "Men and brethren, I have lived in all good conscience before God until this day" (Acts 23:1). Therefore, just because something seems right to us, this does not make it absolutely so and we can also do things without it offending our conscience.
Our Conscience Must Be Trained By the Word of God
Our conscience must be trained to discern between right and wrong. If it has only been trained by our parents, then we will develop a conscience that will consist of values that we have learned from our parents. We need to ask ourselves, "where did my parents get their values?" If their values came from God’s Word then they have passed on values based upon God’s teaching and that is good. However, if they received their values of life from other sources, then you have received your values of life from your parents based on sources other than the Word of God. Why is this important? Because when our earthly life is over we are going to be judged by the words of Jesus. Jesus said: "He who rejects Me, and does not receive My words, has that which judges him — the word that I have spoken will judge him in the last day" (John 12:48). We need to understand that we must live our life on this earth with a good conscience that is based solely on the words of Jesus Christ and the authority that He gave to His inspired apostles. Peter wrote: "knowing this first, that no prophecy of Scripture is of any private interpretation, for prophecy never came by the will of man, but holy men of God spoke as they were moved by the Holy Spirit" (2 Peter 1:20-21).
The Bible Is Our Inspired Guide
The apostle Paul plainly taught that the Bible is the true source wherein man can be made perfect in God’s sight. He said: "All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work" (2 Timothy 3:16-17). It is only through scripture that we can truly learn what God wants us to do in order to be pleasing to Him. The Bible must be our guide throughout life, not our conscience. Unfortunately most people go through life living for the moment and basing just about everything they do on how it makes them feel. As long as their conscience does not bother them, then they continue to partake of all the pleasures of life without any regard to what awaits them after this earthly life comes to an end. I urge you to do as the Bereans did back in the first century as they "….received the word with all readiness, and searched the Scriptures daily to find out whether these things were so" (Acts 17:11). Remember, your conscience is only as good as it has been taught.