Charles Ellicott Commentary Psalms 88:11

"Shall thy lovingkindness be declared in the grave? Or thy faithfulness in Destruction?" — Psalms 88:11 (ASV)

Lovingkindness: better here, covenant grace. The grave knew nothing of this. Death severed the covenant relationship. So “faithfulness,” “wonders,” “righteousness” are all used in their limited sense as determined by the covenant.