English translation got from website: https://www.chabad.org/library/bible_cdo

1. A maskil of Ethan the Ezrahite.
2. The kindnesses of the Lord I shall sing forever; to generation after generation I shall make known Your faithfulness, with my mouth.
3. For I said, « Forever will it be built with kindness; as the heavens, with which You will establish Your faithfulness. »
4. I formed a covenant with My chosen one; I swore to David My servant.
5. Until eternity, I shall establish your seed, and I shall build your throne for all generations forever.
6. And the heavens acknowledge Your wonder, O Lord, also Your faithfulness in the congregation of holy ones.
7. For who in the heavens is equal to the Lord? [Who] resembles the Lord among the sons of the mighty?
8. God is revered in the great council of the holy ones and feared by all around Him.
9. O Lord, God of Hosts, who is like You, O Yah, Who are mighty? And Your faithfulness surrounds You.
10. You rule over the pride of the sea; when it raises its waves, You humble them.
11. You crushed Rahab like one slain; with the arm of Your might You scattered Your enemies.
12. The heaven is Yours, even the earth is Yours; the inhabited earth and the fullness thereof-You founded them.
13. North and south-You created them; Tabor and Hermon sing praises in Your name.
14. You have an arm with might; Your hand is mighty, Your right hand is high.
15. Righteousness and judgment are the basis of Your throne; kindness and truth come before Your countenance.
16. Fortunate is the people that know the blasting of the shofar; O Lord, may they walk in the light of Your countenance.
17. With Your name they rejoice every day, and with Your righteousness they are exalted.
18. For You are the glory of their might, and with Your favor our horns will be raised.
19. For our shield is [devoted] to the Lord, and our king to the Holy One of Israel.
20. Then You spoke in a vision to Your pious ones, and You said, « I placed help on a mighty man; I lifted up a chosen one from the people.
21. I found David My servant, I anointed him with My holy oil.
22. With whom My hand will be established, even My arm will strengthen him.
23. No enemy will exact from him, neither will an unjust person afflict him.
24. And I shall crush his adversaries from before him, and I shall strike his enemies.
25. My faithfulness and My kindness will be with him, and with My name his horn will be raised.
26. I shall place his hand over the sea, and his right hand over the rivers.
27. He will call to Me, ‘You are my Father, my God, and the Rock of my salvation.’
28. I, too, shall make him a firstborn, the highest of the kings of the earth.
29. I will forever keep My kindness for him, and My covenant will remain true to him.
30. And I shall make his seed endure forever, and his throne as the days of the heavens.
31. If his sons forsake My Torah and do not walk in My judgments,
32. If they profane My statutes and do not keep My commandments,
33. I shall punish their transgression with a rod, and their iniquity with stripes.
34. But I shall not cancel My kindness from him, and I shall not betray My faith.
35. I shall not profane My covenant, neither shall I alter the utterance of My lips.
36. One thing have I sworn by My holiness, that I will not fail David.
37. His seed will be forever and his throne is like the sun before Me.
38. Like the moon, which is established forever, and it is a witness in the sky, eternally true. »
39. But You abandoned and You rejected; You became wroth with Your anointed.
40. You abrogated the covenant of Your servant; You profaned his crown to the ground.
41. You breached all his fences; You made his fortifications a ruin.
42. All wayfarers have plundered him; he was a disgrace to his neighbors.
43. You raised the right hand of his adversaries; You caused all his enemies to rejoice.
44. You even turned back the sharp edge of his sword, and You did not raise him up in battle.
45. You have brought an end to his shining, and his throne You have cast down to earth.
46. You have shortened the days of his youth; You have enwrapped him with shame forever.
47. How long, O Lord? Will You hide forever? Will Your anger burn like fire?
48. I am mindful what my old age is; for what futility have You created all the sons of man?
49. Who is a man who will live and not see death, who will rescue his soul from the grasp of the grave forever?
50. Where are Your former acts of kindness, O Lord, which You swore to David in your trust?
51. Remember, O Lord, the disgrace of Your servants, which I bear in my bosom, [the disgrace] of all great nations.
52. Which Your enemies disgraced, O Lord, which they disgraced the ends of Your anointed.
53. Blessed is the Lord forever. Amen and Amen.