The King James Bible addresses anger in several passages:
Ephesians 4:26-32 (KJV)
26 Be ye angry, and sin not: let not the sun go down upon your wrath: 27 Neither give place to the devil. 31 Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice: 32 And be ye kind one to another, tenderhearted, forgiving one another, even as God for Christ’s sake hath forgiven you.
James 1:19-20 (KJV)
19 Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath: 20 For the wrath of man worketh not the righteousness of God.
Proverbs 15:1 (KJV)
1 A soft answer turneth away wrath: but grievous words stir up anger.
Proverbs 29:11 (KJV)
11 A fool uttereth all his mind: but a wise man keepeth it in till afterwards.
Ecclesiastes 7:9 (KJV)
9 Be not hasty in thy spirit to be angry: for anger resteth in the bosom of fools.