9 Heb “or else.”
10 Heb “or else.”
11 The grammatical construction used here (conjunction with independent pronoun) highlights the contrast between the psalmist’s defeated condition envisioned in v. 4 and confident attitude he displays in v. 5.
12 Heb “may my heart rejoice in your deliverance.” The verb form is jussive. Having expressed his trust in God’s faithful character and promises, the psalmist prays that his confidence will prove to be well-placed. “Heart” is used here of the seat of the emotions.
13 The verb form is cohortative, indicating the psalmist’s resolve (or vow) to praise the Lord when deliverance arrives.
14 Or “for he will have vindicated me.” The verb form indicates a future perfect here. The idiom גָמַל עַל (gamal ’al) means “to repay,” here in a positive sense.

In other versions

lest my enemy say, “I have prevailed over him,”

lest my foes rejoice because I am shaken.

But I have trusted in your steadfast love;

my heart shall rejoice in your salvation.

I will sing to the Lord,

because he has dealt bountifully with me.

and my enemy will say, “I have overcome him,”

and my foes will rejoice when I fall.

But I trust in your unfailing love;

my heart rejoices in your salvation.

I will sing the Lord’s praise,

for he has been good to me.

My enemy will say, “I have triumphed over him,”

and my foes will rejoice because I am shaken.

But I have trusted in your faithful love;

my heart will rejoice in your deliverance.

I will sing to the Lord

because he has treated me generously.

Don’t let my enemies gloat, saying, “We have defeated him!”

Don’t let them rejoice at my downfall.

But I trust in your unfailing love.

I will rejoice because you have rescued me.

I will sing to the Lord

because he is good to me.

and lest my enemy should say, “I have overcome him,”

lest my enemies rejoice because I am shaken.

But as for me, I have trusted in your steadfast love.

My heart will rejoice in your deliverance.

I will sing to Yahweh

because he has dealt bountifully with me.

Lest mine enemy say, I have prevailed against him;

And those that trouble me rejoice when I am moved.

But I have trusted in thy mercy;

My heart shall rejoice in thy salvation.

I will sing unto the Lord, because he hath dealt bountifully with me.

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