35 The word “praising” is supplied in the translation for stylistic reasons.
36 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.
37 Or “when.” The translation assumes that כִּי (ki) has an emphasizing (asseverative) function here.
38 Heb “and my life [or “soul”] which you will have redeemed.” The perfect verbal form functions here as a future perfect. The psalmist anticipates praising God, for God will have rescued him by that time.
39 Heb “those who seek my harm.”
40 Heb “will have become embarrassed and ashamed.” The perfect verbal forms function here as future perfects, indicating future actions which will precede chronologically the action expressed by the main verb in the preceding line.

In other versions

ESVEnglish Standard Version

I will also praise you with the harp

for your faithfulness, O my God;

I will sing praises to you with the lyre,

O Holy One of Israel.

My lips will shout for joy,

when I sing praises to you;

my soul also, which you have redeemed.

And my tongue will talk of your righteous help all the day long,

for they have been put to shame and disappointed

who sought to do me hurt.

NIVNew International Version (2011)

I will praise you with the harp

for your faithfulness, my God;

I will sing praise to you with the lyre,

Holy One of Israel.

My lips will shout for joy

when I sing praise to you—

I whom you have delivered.

My tongue will tell of your righteous acts

all day long,

for those who wanted to harm me

have been put to shame and confusion.

CSBChristian Standard Bible

Therefore, I will praise you with a harp

for your faithfulness, my God;

I will sing to you with a lyre,

Holy One of Israel.

My lips will shout for joy

when I sing praise to you

because you have redeemed me.

Therefore, my tongue will proclaim

your righteousness all day long,

for those who intend to harm me

will be disgraced and confounded.

NLTNew Living Translation

Then I will praise you with music on the harp,

because you are faithful to your promises, O my God.

I will sing praises to you with a lyre,

O Holy One of Israel.

I will shout for joy and sing your praises,

for you have ransomed me.

I will tell about your righteous deeds

all day long,

for everyone who tried to hurt me

has been shamed and humiliated.

LEBThe Lexham English Bible

On my part, I will praise you with a stringed instrument,

and your faithfulness, O my God.

I will sing praises to you with a lyre,

O Holy One of Israel.

My lips will sing for joy when I sing praises to you,

and my soul, which you have redeemed.

My tongue also

will speak of your righteousness all the day,

because they have been put to shame, because they have been humiliated

who seek my harm.

KJV 1900King James Version

I will also praise thee with the psaltery,

Even thy truth, O my God: unto thee will I sing

With the harp, O thou Holy One of Israel.

My lips shall greatly rejoice when I sing unto thee;

And my soul, which thou hast redeemed.

My tongue also shall talk of thy righteousness all the day long:

For they are confounded, for they are brought unto shame, that seek my hurt.

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