Jamieson, Fausset & Brown

In the day, &c.--Here the unfinished statement of Rom 2:12 is resumed and closed. shall judge the secrets of men--here specially referring to the unfathomed depths of hypocrisy in the self-righteous whom the apostle had to deal with. (See Ecc 12:14; Co1 4:5). according to my gospel--to my teaching as a preacher of the Gospel.