The psalmist David always talked about what lived around him, that’s why he talks about the bad man, the one who gets angry and the one who keeps his heart angry.
The psalmist exhorts everyone to discard anger and wrath because in truth an angry person can commit imprudence, that is why they should not be determined to do bad:
Cease from anger, and forsake wrath: fret not thyself in any wise to do evil.
David says, “do not be impatient because of the wicked, nor be envious of those who commit such evils.” It is evident that the psalmist alerts us to the lack of morals of all those who commit iniquity, he advises us not to be envious of this class of people.
The evil man always has his thoughts corrupted and does everything that his thoughts dictate, he is envious, anger and wrath are always in him.
That is why we always need to ask God for patience so asnot to get angry when certain situations arise, because these states of emotion can lead us to commit sin. Let us always ask God for this so that things go well for us, amen.