Ephesians 4:26-27 Be ye angry, and sin not: let not the sun go down upon your wrath: Neither give place to the devil.
I was reading Spiritual Leadership by J. Oswald Chambers and came across a helpful list of six conditions that make anger sinful. These were taught by Joseph Butler (1692–1752) and I believe helpful in evaluating our anger.
- When, to favor a resentment or feud, we imagine an injury done to us.
- When an injury done to us becomes, in our minds, greater than it really is.
- When, without real injury, we feel resentment on account of pain or inconvenience.
- When indignation rises too high, and overwhelms our ability to restrain.
- When we gratify resentments by causing pain or harm out of revenge.
- When we are so perplexed and angry at sin in our own lives that we readily project anger at the sin we find in others.