Anger occurs when our desires (whether unrighteous desires or righteous desires) have not been met. The loss of those desires causes a grievous displeasure that can be manifested in various ways. Although anger can be righteous (Eph. 4:26), we most often have and thus display unrighteous anger. Unrighteous anger is usually accompanied by pride and selfishness. Contrary to anger are meekness, self-control, peace, and patience.
ANGER in the heart says things such as: "I have a bad attitude." "I am not getting what I want." "I am bummed, grumpy, irritated, disappointed, or frustrated."
Anxiety is worry. It is a care or concern for something to the extent that it disturbs or troubles our soul. It is taking thought to something so much that it encumbers our mind. Anxiety causes fear, sorrow, fretting, and dread because we believe that God will not care for our situation appropriately.
ANXIETY in the heart says such things as: "I can't stop thinking about this." "I'm stressed out!" "God is not taking care of this the right way."
Bitterness is a form of anger toward God and others that brings despair of soul. It is a hatred of others and a lack of forgiveness of their wrongs, whether those wrongs are real or perceived. Our bitterness grieves that situations have not been made “right” according to our own expectations. Bitterness causes us to miss out on God’s grace in daily life, and it spreads trouble to others (Heb. 12:15). Contrary to bitterness are joy, love, and meekness.
BITTERNESS in the heart says such things as: "I want others to suffer for their wrongs against me." "I hate them." "God has done wrong to me." "I can't get over this...."
Despair is a state of complete hopelessness that fails to have a biblical, eternal perspective. Despair is a fixation upon earthly, temporal situations that causes a downcast spirit and utter discouragement. It is the sin of unbelief in the fact that God always acts and assists in a way that is for our absolute good and total benefit. Contrary to despair is the faith and confidence in God’s sovereign goodness that leads to joyful hope and patient endurance.
DESPAIR in the heart says things such as: "God cannot help me." "My life is hopeless." "I cannot go on." "God is doing wrong to me.
Blessings.