1 Heb “O God, your judgments to [the] king give.”
2 Grant the king … Grant the king’s son. It is not entirely clear whether v. 1 envisions one individual or two. The phrase “the king’s son” in the second line may simply refer to “the king” of the first line, drawing attention to the fact that he has inherited his dynastic rule. Another option is that v. 1 envisions a co-regency between father and son (a common phenomenon in ancient Israel) or simply expresses a hope for a dynasty that champions justice.
3 Heb “and your justice to [the] son of [the] king.”
4 The prefixed verbal form appears to be an imperfect, not a jussive.
5 These people are called God’s oppressed ones because he is their defender (see Pss 9:12, 18; 10:12; 12:5).
6 Heb “[the] mountains will bear peace to the people, and [the] hills with justice.” The personified mountains and hills probably represent messengers who will sweep over the land announcing the king’s just decrees and policies. See Isa 52:7 and C. A. Briggs and E. G. Briggs, Psalms (), 2:.
7 Heb “judge [for].”
8 The prefixed verbal form appears to be an imperfect, not a jussive.
9 Heb “sons.”

In other versions

ESVEnglish Standard Version

Give the king your justice, O God,

and your righteousness to the royal son!

May he judge your people with righteousness,

and your poor with justice!

Let the mountains bear prosperity for the people,

and the hills, in righteousness!

May he defend the cause of the poor of the people,

give deliverance to the children of the needy,

and crush the oppressor!

NIVNew International Version (2011)

Endow the king with your justice, O God,

the royal son with your righteousness.

May he judge your people in righteousness,

your afflicted ones with justice.

May the mountains bring prosperity to the people,

the hills the fruit of righteousness.

May he defend the afflicted among the people

and save the children of the needy;

may he crush the oppressor.

CSBChristian Standard Bible

God, give your justice to the king

and your righteousness to the king’s son.

He will judge your people with righteousness

and your afflicted ones with justice.

May the mountains bring well-being to the people

and the hills, righteousness.

May he vindicate the afflicted among the people,

help the poor,

and crush the oppressor.

NLTNew Living Translation

Give your love of justice to the king, O God,

and righteousness to the king’s son.

Help him judge your people in the right way;

let the poor always be treated fairly.

May the mountains yield prosperity for all,

and may the hills be fruitful.

Help him to defend the poor,

to rescue the children of the needy,

and to crush their oppressors.

LEBThe Lexham English Bible

O God, give your judgments to the king,

and your righteousness to the king’s son.

May he judge your people with righteousness,

and your poor with justice.

Let the mountains yield prosperity for the people,

and the hills in righteousness.

May he provide justice for the poor of the people,

save the children of the needy,

and crush the oppressor.

KJV 1900King James Version

Give the king thy judgments, O God,

And thy righteousness unto the king’s son.

He shall judge thy people with righteousness,

And thy poor with judgment.

The mountains shall bring peace to the people,

And the little hills, by righteousness.

He shall judge the poor of the people,

He shall save the children of the needy,

And shall break in pieces the oppressor.

Public Domain