This commentary of Perkins and Cudworth on Galatians first appeared in print in 1604, two years after Perkins's death. Perkins's other writings had already begun to be gathered and published. When the three-volume edition of his collected works first appeared, Galatians occupied over 320 large folio pages in the second volume (1609). It continued to appear as a part of several editions of the Works through their final 1635 reprint. Evidently, interest in the commentary warranted its publication again as a separate volume in 1617.
Following the model taught in his treatise The Art of Prophesying, Perkins's pattern in commenting on Galatians is to explain the text, deduce a few points of doctrine from it, answer objections raised against the doctrine, and then give practical uses of what the passage teaches.