25 Heb “who know the shout.” “Shout” here refers to the shouts of the Lord’s worshipers (see Pss 27:6; 33:3; 47:5).
26 Heb “in the light of your face they walk.” The idiom “light of your face” probably refers to a smile (see Eccl 8:1), which in turn suggests favor and blessing (see Num 6:25; Pss 4:6; 31:16; 44:3; 67:1; 80:3, 7, 19; Dan 9:17).
27 Heb “are lifted up.”
28 Heb “for the splendor of their strength [is] you.”
29 Heb “you lift up our horn,” or if one follows the marginal reading (Qere), “our horn is lifted up.” The horn of an ox underlies the metaphor (see Deut 33:17; 1 Kgs 22:11; Ps 92:10). The horn of the wild ox is frequently a metaphor for military strength; the idiom “exalt/lift up the horn” signifies military victory (see 1 Sam 2:10; Pss 75:10; 89:24; 92:10; Lam 2:17).
30 The phrase “our shield” refers metaphorically to the Davidic king, who, as God’s vice-regent, was the human protector of the people. Note the parallelism with “our king” here and with “your anointed one” in Ps 84:9.
31 The basic sense of the word “holy” is “set apart from that which is commonplace, special, unique.” The Lord’s holiness is first and foremost his transcendent sovereignty as the ruler of the world. He is “set apart” from the world over which he rules. At the same time his holiness encompasses his moral authority, which derives from his royal position. As king he has the right to dictate to his subjects how they are to live; indeed his very own character sets the standard for proper behavior. This expression is a common title for the Lord in the book of Isaiah.

In other versions

ESVEnglish Standard Version

Blessed are the people who know the festal shout,

who walk, O Lord, in the light of your face,

who exult in your name all the day

and in your righteousness are exalted.

For you are the glory of their strength;

by your favor our horn is exalted.

For our shield belongs to the Lord,

our king to the Holy One of Israel.

NIVNew International Version (2011)

Blessed are those who have learned to acclaim you,

who walk in the light of your presence, Lord.

They rejoice in your name all day long;

they celebrate your righteousness.

For you are their glory and strength,

and by your favor you exalt our horn.

Indeed, our shield belongs to the Lord,

our king to the Holy One of Israel.

CSBChristian Standard Bible

Happy are the people who know the joyful shout;

Lord, they walk in the light from your face.

They rejoice in your name all day long,

and they are exalted by your righteousness.

For you are their magnificent strength;

by your favor our horn is exalted.

Surely our shield belongs to the Lord,

our king to the Holy One of Israel.

NLTNew Living Translation

Happy are those who hear the joyful call to worship,

for they will walk in the light of your presence, Lord.

They rejoice all day long in your wonderful reputation.

They exult in your righteousness.

You are their glorious strength.

It pleases you to make us strong.

Yes, our protection comes from the Lord,

and he, the Holy One of Israel, has given us our king.

LEBThe Lexham English Bible

Blessed are the people who know the joyful shout;

O Yahweh, they walk about in the light of your countenance.

In your name they rejoice all the day,

and in your righteousness they rise up.

For you are the glory of their strength,

and by your favor our horn rises up,

because our shield belongs to Yahweh,

and our king to the Holy One of Israel.

KJV 1900King James Version

Blessed is the people that know the joyful sound:

They shall walk, O Lord, in the light of thy countenance.

In thy name shall they rejoice all the day:

And in thy righteousness shall they be exalted.

For thou art the glory of their strength:

And in thy favour our horn shall be exalted.

For the Lord is our defence;

And the Holy One of Israel is our king.

Public Domain