Commentaries:
Jamieson, Fausset, and Brown
Their line—or, "instruction"—the influence exerted by their tacit display of God's perfections. Paul (Romans 10:8), quoting from the Septuagint, uses "sound," which gives the same sense.
Other Jamieson, Fausset, and Brown entries containing Psalms 19:4:
Psalms 19:1
Romans 10:18
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