We should not assume that our contentions for the truth will always be directed toward those who know not the Lord. Unfortunately, our stand for truth will often be opposed by the very ones who claim to know the Lord as Saviour. Nehemiah serves as a great example of someone who stood for the Lord against severe opposition from his brethren. In the thirteenth chapter of the book that bears his name, the Bible records his stand against those who were set apart by the Lord. He contended with them for the house of the Lord (Nehemiah 13:11), the law of the Lord (Nehemiah 13:15-22), and the purity of their homes (Nehemiah 13:23-26). Just as Nehemiah contended with those who knew the Lord, God may call upon us to do the very same thing.
The Bible teaches us that “if any man be in Christ, he is a new creature” (2 Corinthians 5:17). Following salvation, a man's life should display visible changes as he seeks to put off his former conversation. According to scripture, that former conversation fulfilled “the desires of the flesh and of the mind” (Ephesians 2:3). By the grace of God, change is possible because every believer has been redeemed from his “vain conversation” (1 Peter 1:18). The apostle Paul is a great example. Before meeting the Lord on the road to Damascus, Paul's conversation or lifestyle involved mercilessly persecuting the church (Galatians 1:13). In his new life with Christ, he immediately began preaching the very faith he once destroyed (Galatians 1:23). When a person truly places his faith for salvation in the finished work of Christ, his conversation will change accordingly.