15 Heb “Rephaim,” a term that refers to those who occupy the land of the dead (see Isa 14:9; 26:14, 19).
16 Heb “in Abaddon,” a name for Sheol. The noun is derived from a verbal root meaning “to perish,” “to die.”

In other versions

Do you work wonders for the dead?

Do the departed rise up to praise you? Selah

Is your steadfast love declared in the grave,

or your faithfulness in Abaddon?

Do you show your wonders to the dead?

Do their spirits rise up and praise you?

Is your love declared in the grave,

your faithfulness in Destruction?

Do you work wonders for the dead?

Do departed spirits rise up to praise you?

Selah

Will your faithful love be declared in the grave,

your faithfulness in Abaddon?

Are your wonderful deeds of any use to the dead?

Do the dead rise up and praise you?

Interlude

Can those in the grave declare your unfailing love?

Can they proclaim your faithfulness in the place of destruction?

Do you work wonders for the dead?

Or do the departed spirits rise up to praise you? Selah

Is your loyal love told in the grave,

or your faithfulness in the underworld?

Wilt thou shew wonders to the dead?

Shall the dead arise and praise thee? Selah.

Shall thy lovingkindness be declared in the grave?

Or thy faithfulness in destruction?

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