Definition and Nature of Anger:
Anger is a strong emotional response of displeasure and antagonism aroused by a perceived wrong or injustice. In the biblical context, anger can be both a human emotion and an attribute of God, though the nature and expression of divine anger differ significantly from human anger.

Biblical Instances of Anger:
The Bible provides numerous examples of anger, both righteous and unrighteous. Righteous anger is often associated with God's response to sin and injustice. For instance, God's anger is depicted in the context of idolatry and disobedience, as seen in Exodus 32:10, where God expresses His wrath against the Israelites for worshiping the golden calf: "Now leave Me alone, so that My anger may burn against them and consume them. Then I will make you into a great nation."

Human anger, however, is frequently cautioned against due to its potential for sin. James 1:19-20 advises, "My beloved brothers, understand this: Everyone should be quick to listen, slow to speak, and slow to anger, for man's anger does not bring about the righteousness that God desires."

Causes of Anger:
Anger can arise from various sources, including personal offenses, perceived injustices, unmet expectations, and frustration. The Bible acknowledges these triggers but warns against allowing anger to lead to sin. Ephesians 4:26-27 instructs, "Be angry, yet do not sin. Do not let the sun set upon your anger, and do not give the devil a foothold."

Consequences of Uncontrolled Anger:
Uncontrolled anger can lead to destructive behavior and strained relationships. Proverbs 29:22 states, "An angry man stirs up dissension, and a hot-tempered man abounds in transgression." The Bible emphasizes the importance of self-control and the dangers of allowing anger to fester, as it can give rise to bitterness, resentment, and even violence.

Managing Anger:
Scripture provides guidance on managing anger in a way that honors God. Believers are encouraged to practice forgiveness, patience, and self-control. Colossians 3:8 advises, "But now you must put aside all such things as these: anger, rage, malice, slander, and filthy language from your lips." Additionally, Proverbs 15:1 highlights the power of gentle words: "A gentle answer turns away wrath, but a harsh word stirs up anger."

Righteous Anger:
While human anger is often cautioned against, there is a place for righteous anger, which aligns with God's justice and holiness. This form of anger is directed against sin and injustice, motivated by love for God and others. Jesus Himself demonstrated righteous anger when He cleansed the temple, as recorded in John 2:15-16: "So He made a whip out of cords and drove all from the temple courts, both sheep and cattle; He scattered the coins of the money changers and overturned their tables. To those who sold doves He said, 'Get these out of here! How dare you turn My Father’s house into a market!'"

Divine Anger:
God's anger is always just and serves a purpose in His divine plan. It is an expression of His holiness and righteousness, often leading to correction and restoration. Nahum 1:2-3 describes God's anger as slow to arise but powerful: "The LORD is a jealous and avenging God; the LORD is avenging and full of wrath. The LORD takes vengeance on His foes and reserves wrath for His enemies. The LORD is slow to anger and great in power; the LORD will by no means leave the guilty unpunished."

Conclusion:
Understanding anger from a biblical perspective involves recognizing its potential for both righteousness and sin. Believers are called to reflect God's character by exercising self-control, seeking reconciliation, and channeling any righteous anger towards constructive ends that align with God's will.