Charles Ellicott Commentary Psalms 50:4

"He calleth to the heavens above, And to the earth, that he may judge his people:" — Psalms 50:4 (ASV)

He shall call. —Better, He calls. The poet actually hears the summons go forth calling heaven and earth as witnesses, or assessors , of the judgment scene. (Deuteronomy 32:1; Isaiah 1:2; Micah 1:2; 1 Maccabees 2:37.)

Israel, politically so insignificant, must have been profoundly conscious of the tremendous issues involved in its religious character to demand a theater so vast, an audience so august.