Be angry, and yet do not sin; do not let the sun go down on your anger,

and do not give the devil an opportunity.

Efésios 4:26,27

Take care, brethren, lest there be in any one of you an evil, unbelieving heart, leading you to fall away from the living God.

Hebreus 3:12

This you know, my beloved brethren. But everyone must be quick to hear, slow to speak and slow to anger,

Tiago 1:19

20 And he said, »What comes out of a man is what defiles a man.

21 For from within, out of the heart of men, come evil thoughts, fornications, theft, murder, adultery,

22 coveting, wickedness, deceit, lewdness, envy, slander, pride, foolishness.

23 All these evil things come from within, and they defile a man.«

Marcos 7:20-23

Love is patient, love is kind. It is not jealous or boastful, it is not arrogant

or rude, it does not seek its own, it is not provoked, it keeps no record of wrongs,

1 Coríntios 13:4,5