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.
As it is with all sin, rebellion originates within the heart. Long before it manifests itself in the individual’s actions, it finds life by taking root within his heart. The Lord described a rebellious generation by saying that they were “a generation that set not their heart aright, and whose spirit was not stedfast with God.” A man with a wicked heart and the wrong spirit cannot enjoy sweet fellowship with the Lord. As rebellion takes root in his heart, the rebellion pushes out the desires for prayer and for God’s word. Humility is crowded out because of pride and self-will to the extent that a man justifies, perhaps even with scripture, his rebellious spirit. His once soft heart becomes hardened because of the deceitfulness of sin.
