“It doesn’t matter what you believe, as long as you are sincere.” Wow! This statement is so broadminded, tolerant, unprejudicial, unbiased, and politically correct. There is one problem with it: it’s irrational! Our culture assumes that: Truth is relative; We cannot know truth; There is more than one way to God; Everyone is entitled to his own opinion; Man legislates his own morality; Moral values are relative; We must look out for number one; The church must keep up with the times; The Bible is irrelevant to modern life. In answer to these societal beliefs, God’s Word offers the following: Truth is absolute (Psalm 119: 160). God's Word is truth (John 17: 17). Jesus is the only way (John 14:6). Man’s opinions are often wrong (Proverbs 14:1 2). Man cannot legislate his own morality (Jeremiah 10:23). Moral values are absolute (Romans 12:9). We must put others first (Matthew 22:37-40). The divine side of the church cannot change (1 Peter 4:1-5). The Bible is timeless (1 Peter 1:23-25).
The problem with what culture says, what society says, what conventional wisdom is, or what I sincerely believe, is that it keeps changing. God speaks about “the faith that was once for all delivered to the saints” (Jude 3). Man is not to add to or take away from or modify the Word of God (Revelation 22:18-19). God’s Word does not change!
We can be "established in the present truth" (2 Peter 1:12; 1 Pet. 1:22-25). Like Paul, we can be "teachers…in faith and truth" (1 Timothy 2:7. We can understand the knowledge of the apostles (Ephesians 3:3-5). We can know the truth like the early saints did (1 John 2:21). By our conduct we know if we are "of the truth" (1 John 3:18-19).
It is a common held belief that goes like this: “since none is infallible then none can be certain of any doctrine; and since none can be certain of any doctrine we cannot conclude someone else’s beliefs and practices are wrong…” When applied to biblical teaching, there are those who conclude that baptism for remission of sins is not essential. That the use of mechanical instruments of music in the worship is a matter of opinion. They use the same reasoning to teach that individuals can divorce and remarry for any cause (Matthew 19:4) It is a mindset many use to try to justify those who teach salvation by faith only (Matthew 7:21). Bottom line: People have a problem with truth because it is absolute.
If we say we cannot be certain of God’s truth, then: We indict the power of God to communicate His will (Deuteronomy 30:11-14; Romans 10:6-8). There is a denial of the power of truth (2 Timothy 3:5-7; Romans 1:16). One Implies that Bible study is ultimately futile (2 Timothy 2:15). The implication is made that we cannot know whether we have gone beyond the doctrine of Christ (2 John. 9; Galatians 1:8-9). It would make giving an answer for our hope an arrogant exercise (1 Peter 3:15).
Samuel Thompson, stated in Modern Philosophy of Religion (1956),
"Although religion requires sincerity, sincerity is not enough, for belief needs also to be true. The sincerity with which a person holds a belief, maybe some indication of its truth, provided he who holds it is a person, of knowledge and integrity, on the other hand sincerity and false belief may equally well expose the frailty of the mind which holds it. The only sound reason to advocate that a religious doctrine be accepted is to be found in its truth." (90-91).
What is going to be the authority for my life? What’s going to be the basis for my beliefs and my behavior? What’s my compass? What’s going to be the standard by which I evaluate my life? It will be either the world or the Word!