Deliver me from my Enemies, O my God

David calls upon God to save him from his enemies who were hunting him. He describes his enemies as bloodthirsty, workers of iniquity and mighty. They pursue David not because David did any wrong. So David called upon God to show them no mercy. David describes his enemies like dogs who keep on hunting him and return again in the evening not satisfied. He calls God to not destroy them but bring them down and scatter them.
David puts full confidence in God, singing of his power, calling him his strength and his defence.

Psalm 59
To the Chief Musician. Set to “Do Not Destroy.”[a] A Michtam of David when Saul sent men, and they watched the house in order to kill him.

 1 Deliver me from my enemies, O my God;
         Defend me from those who rise up against me.
 2 Deliver me from the workers of iniquity,
         And save me from bloodthirsty men.
        
 3 For look, they lie in wait for my life;
         The mighty gather against me,
         Not for my transgression nor for my sin, O LORD.
 4 They run and prepare themselves through no fault of mine.
        
         Awake to help me, and behold!
 5 You therefore, O LORD God of hosts, the God of Israel,
         Awake to punish all the nations;
         Do not be merciful to any wicked transgressors.  Selah 
        
 6 At evening they return,
         They growl like a dog,
         And go all around the city.
 7 Indeed, they belch with their mouth;
         Swords are in their lips;
         For they say, “Who hears?”
        
 8 But You, O LORD, shall laugh at them;
         You shall have all the nations in derision.
 9 I will wait for You, O You his Strength;[b]
         For God is my defense.
 10 My God of mercy[c] shall come to meet me;
         God shall let me see my desire on my enemies.
        
 11 Do not slay them, lest my people forget;
         Scatter them by Your power,
         And bring them down,
         O Lord our shield.
 12 For the sin of their mouth and the words of their lips,
         Let them even be taken in their pride,
         And for the cursing and lying which they speak.
 13 Consume them in wrath, consume them,
         That they may not be;
         And let them know that God rules in Jacob
         To the ends of the earth.  Selah 
        
 14 And at evening they return,
         They growl like a dog,
         And go all around the city.
 15 They wander up and down for food,
         And howl[d] if they are not satisfied.
        
 16 But I will sing of Your power;
         Yes, I will sing aloud of Your mercy in the morning;
         For You have been my defense
         And refuge in the day of my trouble.
 17 To You, O my Strength, I will sing praises;
         For God is my defense,
         My God of mercy.