[On ISAIAH 29:13] Is taught by the precept of men. That is, their views, instead of having been derived from the Scriptures, were drawn from the doctrines of men. Our Saviour referred to this passage, and applied it to the hypocrites of his own time (Matt. xv. 8, 9). The latter part of it is, however, not quoted literally from the Hebrew, nor from the LXX., but retains the sense: 'But in vain do they worship me, teaching for doctrines the commandments of men.' He quoted it as strikingly descriptive of the people when he lived, not as saying that Isaiah referred directly to his times.
- from page 443, Volume I, Notes on the Old Testament