English Standard Version
Why do you boast of evil, O mighty man? The steadfast love of God endures all the day.

American Standard Version
Why boastest thou thyself in mischief, O mighty man? The lovingkindness of God endureth continually.

Berean Study Bible
For the choirmaster. A Maskil of David. After Doeg the Edomite went to Saul and told him, “David has gone to the house of Ahimelech.” Why do you boast of evil, O mighty man? The loving devotion of God endures all day long.

Douay-Rheims Bible
Unto the end, understanding for David, when Doeg the Edomite came and told Saul David went to the house of Achimelech Why dost thou glory in malice, thou that art mighty in iniquity?

English Revised Version
For the Chief Musician. Maschil of David: when Doeg the Edomite came and told Saul, and said unto him, David is come to the house of Ahimelech. Why boastest thou thyself in mischief, O mighty man? the mercy of God endureth continually.

King James Bible
To the chief Musician, Maschil, A Psalm of David, when Doeg the Edomite came and told Saul, and said unto him, David is come to the house of Ahimelech. Why boastest thou thyself in mischief, O mighty man? the goodness of God endureth continually.

World English Bible
Why do you boast of mischief, mighty man? God's loving kindness endures continually.

Young's Literal Translation
To the Overseer. -- An instruction, by David, in the coming in of Doeg the Edomite, and he declareth to Saul, and saith to him, 'David came in unto the house of Ahimelech.' What, boasteth thou in evil, O mighty one? The kindness of God is all the day.

Psalm 52:1 Additional Translations ...