To the chief Musician, a Psalm of David. This psalm was penned by David, and inscribed to the chief musician, as others, to be used in public service, and was designed for Gospel times, as the subject of it shows; which is first, not an account of the light of nature, and then of the law of Moses, but of the Gospel of Christ; and especially as ministered in the times of the apostles, as a citation out of it in Romans 10:18, makes clear.