What the Holy Bible says about Anger:
26 “In your anger do not sin”: Do not let the sun go down while you are still angry, 27 and do not give the devil a foothold. (Ephesians 4: 26-27)
7 Submit yourselves therefore to God. Resist the devil, and he will flee from you. (James 4: 7)
14 For if ye forgive men their trespasses, your heavenly Father will also forgive you: 15 But if ye forgive not men their trespasses, neither will your Father forgive your trespasses. (Matthew 6: 14-15)
A gentle answer turns away wrath, but a harsh word stirs up anger. (Proverbs 15: 1)
19 My dear brothers and sisters, take note of this: Everyone should be quick to listen, slow to speak and slow to become angry, 20 because human anger does not produce the righteousness that God desires. (James 1: 19-20)
8 The Lord is gracious and compassionate, slow to anger and rich in love. (Psalm 145: 8)
17 … But you are a forgiving God, gracious and compassionate, slow to anger and abounding in love. Therefore you did not desert them. (Nehemiah 9: 17)
5 For his anger lasts only a moment, but his favor lasts a lifetime; weeping may stay for the night, but rejoicing comes in the morning. (Psalm 30: 5)
9 Do not be quickly provoked in your spirit, for anger resides in the lap of fools. (Ecclesiastes 7: 9)
17 A quick-tempered person does foolish things, and the one who devises evil schemes is hated. (Proverbs 14: 17)
18 A hot-tempered person stirs up conflict, but the one who is patient calms a quarrel. (Proverbs 15: 18)
8 Refrain from anger and turn from wrath; do not fret—it leads only to evil. (Psalm 37: 8)
21 “You have heard that it was said to those of old, ‘You shall not murder, and whoever murders will be in danger of the judgment.’ 22 But I say to you that whoever is angry with his brother without a cause shall be in danger of the judgment. And whoever says to his brother, ‘Raca!’ shall be in danger of the council. But whoever says, ‘You fool!’ shall be in danger of hell fire. (Matthew 5: 21-22) (NKJV)
29 Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen. 30 And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption. 31 Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice. 32 Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you. (Ephesians 4: 29-32)
17 Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everyone. 18 If it is possible, as far as it depends on you, live at peace with everyone. 19 Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: “It is mine to avenge; I will repay,” says the Lord. 20 On the contrary: “If your enemy is hungry, feed him; if he is thirsty, give him something to drink.In doing this, you will heap burning coals on his head.” 21 Do not be overcome by evil, but overcome evil with good. (Romans 12: 17-21)
8 But now you must also rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. (Colossians 3: 8)
8 Finally, all of you, be like-minded, be sympathetic, love one another, be compassionate and humble. 9 Do not repay evil with evil or insult with insult. On the contrary, repay evil with blessing, because to this you were called so that you may inherit a blessing. 10 For, “Whoever would love life and see good days must keep their tongue from evil and their lips from deceitful speech. 11 They must turn from evil and do good; they must seek peace and pursue it. 12 For the eyes of the Lord are on the righteous and his ears are attentive to their prayer, but the face of the Lord is against those who do evil.” (1 Peter 3: 8-12)
23 Therefore is the kingdom of heaven likened unto a certain king, which would take account of his servants. 24 And when he had begun to reckon, one was brought unto him, which owed him ten thousand talents. 25 But forasmuch as he had not to pay, his lord commanded him to be sold, and his wife, and children, and all that he had, and payment to be made. 26 The servant therefore fell down, and worshiped him, saying, Lord, have patience with me, and I will pay thee all. 27 Then the lord of that servant was moved with compassion, and loosed him, and forgave him the debt. 28 But the same servant went out, and found one of his fellow servants, which owed him an hundred pence: and he laid hands on him, and took him by the throat, saying, Pay me that thou owest. 29 And his fellow servant fell down at his feet, and besought him, saying, Have patience with me, and I will pay thee all. 30 And he would not: but went and cast him into prison, till he should pay the debt. 31 So when his fellow servants saw what was done, they were very sorry, and came and told unto their lord all that was done. 32 Then his lord, after that he had called him, said unto him, O thou wicked servant, I forgave thee all that debt, because thou desiredst me: 33 Shouldest not thou also have had compassion on thy fellow servant, even as I had pity on thee? 34 And his lord was wroth, and delivered him to the tormentors, till he should pay all that was due unto him. 35 So likewise shall my heavenly Father do also unto you, if ye from your hearts forgive not every one his brother their trespasses. (Matthew 18: 23-35)