Justin Martyr:
“I hold further, that those of you who have confessed and known this man to be Christ, yet who have gone back for some reason to the legal dispensation [i.e., the Mosaic Law], and have denied that this man is Christ, and have not repented before death – you will by no means be saved.”
Polycarp:
“Into this joy, many persons desire to enter. They know that ‘by grace you are saved, not of works,’ but by the will of God through Jesus Christ. . . . But He who raised him up from the dead will raise up us also – if we do His will, and walk in His commandments, and love what He loved, keeping ourselves from all unrighteousness.”