Peter knew that the Gentiles were no longer to be considered unclean (Acts 10:9-16), and he demonstrated this by eating with them. However, when some prominent Jews arrived, Peter “withdrew and separated himself, fearing them which were of the circumcision.” He knew better but allowed fear to cause him to rebel against the clear teachings of the Lord. As such, Peter “was to be blamed” (Galatians 2:11), and Paul had to rebuke him. It is one thing for a man to sin against the Lord through ignorance, but Peter knowingly, purposely, and openly violated God’s word. In like manner, believers today must bear the blame and the shame when they sin against the clear teachings of scripture.
Many people, including Christians, find criticism hard to accept, especially when the criticism seems to be unjustified. However, criticism (or reproof as the Bible refers to it) remains a useful tool in developing one's character. Today's text says, “A fool despiseth his father’s instruction.” In fact, the fool refuses to readily receive instruction, certain that he does not need to hear it. Yet, the prudent “regardeth reproof.” A prudent man will listen to the instructions or reproofs of others knowing that the Lord uses reproofs to adjust one’s shortcomings. The prudent man may or may not totally agree with the criticisms, but will listen to them knowing that God can still use these reproofs to change his heart.
