Anger.

"When a child is cross and angry,
    Never must her voice be heard;
Only to herself most softly
    May she say this simple word,

"Lead us not into temptation;"
    That will angry thoughts remove,
Make her calm and still and gentle,
    With a spirit full of love.

God when He's angry here with anyone,
His wrath is free from perturbation;
And when we think His looks are sour and grim,
The alteration is in us, not Him.

If accusation only can draw blood,
None shall be guiltless, be he ne'er so good.

Blunted unto goodness is the heart which anger never stirreth,
But that which hatred swelleth, is keen to carve out evil.
Anger is a noble infirmity, the generous failing of the just.
The one degree that riseth above zeal, asserting the prerogatives of virtue:
But hatred is a slow continuing crime, a fire in the bad man's breast,
A dull and hungry flame, for ever craving insatiate.
Hatred would harm another; anger would indulge itself;
Hatred is a simmering poison; anger, the opening of a valve:
Hatred destroyeth as the upas-tree; anger smiteth as a staff:
Hatred is the atmosphere of hell; but anger is known in heaven.
Is there not a righteous wrath, an anger just and holy,
When goodness is sitting in the dust, and wickedness enthroned on Babel?
Doth pity condemn guilt? — is just...

God can't be wrathful: but we may conclude
Wrathful He may be by similitude:
God's wrathful said to be, when He doth do
That without wrath which wrath doth force us to.

Roaring is nothing but a weeping part
Forced from the mighty dolour of the heart.