There is an objective standard of truth by which all doctrines are to be measured. That truth can be ascertained and obeyed. We see this from certain passages in both the Old and New Testaments. Solomon advised us to “buy the truth and sell it not” (Prov. 23:23). David plainly confessed that he walked in the truth (Psa. 26:3 cf; 86:11). Furthermore, he said that he taught the truth in the congregation of Israel (Psa. 40:10). These were not the statements of egotists; they were statements of men who recognized that “truth” was to be identified with the ordinances and commandments of God (Psa. 119:43, 151). They understood that “the sum of your word is truth” (Psa. 119:160).
Jesus expressed this same attitude toward truth. He believed that there is an objective truth and that truth is His word. Furthermore, men must know that truth in order to be delivered from the bondage of sin (Jn. 8:32). Truth came by Jesus (Jn. 1:17) and is Jesus (Jn. 14:6 f; Eph. 4:21). “Your word is truth” (Jn. 17:17); it is the only means which man has for being sanctified. Furthermore, by it all men shall be judged (Jn. 12:48). Therefore, like the writers of the Old Testament, Jesus recognized that there is an objective standard of truth which all men can know through the reading of God’s revelation in the Bible.
Rhe Scriptures purport to be the objective standard of truth by which all things are to be measured. Both conduct and doctrine are to be measured by the standard of God’s revelation in the New Testament Scriptures (1 Cor. 4:6 cf; 14:37-38 f; 2 Thess. 3:4, 6, 11). The New Testament Scriptures were preached and were to be received as the word of God, not the mere words of men (1 Thess. 2:13 f; Eph. 3:1-5). They are our sufficient guide to everlasting life (2 Tim. 3:16, 17 f; 2 Pet. 1:3-4). The man who refused to stay within the revelation of God’s word was not to be fellowshipped (2 Thess. 3:6, 14-15).
The Scriptures are the standard bearer for determining what is right and wrong in reference to both morality and doctrine. In a society which sees nothing wrong with adultery, fornication, homosexuality, prostitution, gambling, etc, Christians must preach the word of God as the standard by which to measure all moral questions. Similarly, to an age which teaches that men are acceptable to God whether or not they obey the gospel and doctrine of Christ, and that one can worship God acceptable in ways not revealed in the Scriptures, Christians must hold forth the word of God as the only standard for all doctrinal issues. No one holds a patient on the truth. No one is allowed to makeup their own version of the truth. Yes, there is an absolute truth and man is not allowed to change it whatsoever (1 Cor 4:6 ff; Gal 1:6-10; 1 Pet 4:11; Rev 22:18,19). All are subject to obey the truth and continue in it until they part from this world (Jn 14:15 ff; Jn 8:31,32; 2 Jn 9). And when all is said and done, all will be judged according to the truth of God and give account of their deeds (2 Cor 5:10).