Psalms 138:6 - Ellicott's Commentary On The Whole Bible

Knoweth afar off. — Or, recognises from afar. From His exaltation Jehovah looks down alike on the lowly and on the proud, but it is to show a gracious interest in the former, while the latter are merely marked as persons to be kept at a distance. “Lowliness and humility are the court dress of God; he who wears them will please Him well.”