Anger is not sinful, yet the source of one’s anger sometimes does manifest one’s sinful heart. Perhaps the prophet Jonah best demonstrates this truth. When the Lord first approached Jonah about the need in Nineveh, Jonah clearly displayed his displeasure in seeing the Lord work in the lives of the Ninevites. After experiencing the Lord’s chastening, Jonah appeared to have a heart change. Yet, it did not take long before his anger revealed his true feelings and thoughts. As the hearts of the Ninevites were becoming tender toward the Lord, the prophet’s heart was becoming hardened through anger. His anger revealed that he wanted his own will and not God’s.
The Bible says that God is angry every day. Yet, at the same time He may display His anger, the Bible also says that He is love (1 John 4:8), and righteous (Ezra 9:15), and compassionate (Psalm 86:15), and just (Deuteronomy 32:4), and merciful (Deuteronomy 4:31). The source of God’s anger and the means by which He acts upon His anger sets the standard for what is truly a righteous anger. If man’s righteous acts provoked God to anger, this would signify a sinful nature. The Bible is clear that the opposite holds true. God is provoked to anger by sin (1 Kings 16:2), vanity (1 Kings 16:26), and idolatry (1 Kings 22:53). His righteous anger in each case plainly declares God’s righteous nature. The source of His anger sets forth the only sources by which men should become angry.
When asked about the requirements for baptism, John the Baptist gave several suggestions including, “Do violence to no man.” It can be argued that John was not simply giving baptismal requirements but simply attempting to draw attention to the wickedness of those seeking his baptism. Regardless, we know that John admonished the people to cease from violence. The Bible makes obvious exceptions during times of war or in the exacting of righteous judgment. However, as a rule, God calls the righteous to live peaceably with others and avoid violence (Romans 12:18). Christians are further admonished against finding any pleasure in those who do such things (Romans 1:29, 32).