Ellicott's Commentary for English Readers - Psalms 50:6
(6) The heavens.—Here is an exceedingly fine touch. In obedience to the Divine summons the heavens are heard acknowledging the right of God to arraign the nations before Him in virtue of His moral sway. Render the verb in the present: And the heavens declare. The verse is adapted to Psalms 97:6.In the language of modern thought, order and law in the physical world are an evidence of an ordered moral government, and the obedience of the unconscious stars to that sway which, as Wordsworth says,... read more
Ellicott's Commentary for English Readers - Psalms 50:5
(5) My saints.—This verse is of great importance, as containing a formal definition of the word chasîdîm, and so a direction as to its interpretation wherever it occurs in the Hebrew hymn book. The “saints” are those in the “covenant,” and that covenant was ratified by sacrifices. As often, then, as a sacrifice was offered by an Israelite, it was a witness to the existence of the covenant, and we are not to gather, therefore, from this psalm that outward acts of sacrifice were annulled by the... read more