13 The psalmist warns his enemies that they need to tremble with fear before God and repudiate their sinful ways.
14 Heb “say in your heart(s) on your bed(s) and wail/lament.” The verb דֹמּוּ (dommu) is understood as a form of דָמָם (“wail, lament”) in sorrow and repentance. Another option is to take the verb from II דָמָם (damam, “be quiet”); cf. , “be silent.”
15 Or “proper, right.” The phrase also occurs in Deut 33:19 and Ps 51:19.
16 Trust in the Lord. The psalmist urges his enemies to make peace with God and become his followers.

In other versions

Be angry, and do not sin;

ponder in your own hearts on your beds, and be silent. Selah

Offer right sacrifices,

and put your trust in the Lord.

Tremble and do not sin;

when you are on your beds,

search your hearts and be silent.

Offer the sacrifices of the righteous

and trust in the Lord.

Be angry and do not sin;

reflect in your heart while on your bed and be silent.

Selah

Offer sacrifices in righteousness

and trust in the Lord.

Don’t sin by letting anger control you.

Think about it overnight and remain silent.

Interlude

Offer sacrifices in the right spirit,

and trust the Lord.

Be disturbed but do not sin.

Commune in your heart on your bed and be silent. Selah

Offer correct sacrifices,

and trust in Yahweh.

Stand in awe, and sin not:

Commune with your own heart upon your bed, and be still. Selah.

Offer the sacrifices of righteousness,

And put your trust in the Lord.

Public Domain