Jamieson, Fausset & Brown

If by any means--not implying uncertainty of the issue, but the earnestness of the struggle of faith (Co1 9:26-27), and the urgent need of jealous self-watchfulness (Co1 10:12). attain unto the resurrection of the dead--The oldest manuscripts read, "the resurrection from (out of) the dead," namely, the first resurrection; that of believers at Christ's coming (Co1 15:23; Th1 4:15; Rev 20:5-6). The Greek word occurs nowhere else in the New Testament. "The power of Christ's resurrection" (Rom 1:4), ensures the believer's attainment of the "resurrection from the (rest of the) dead" (compare Phi 3:20-21). Compare "accounted worthy to obtain the resurrection from the dead" (Luk 20:35). "The resurrection of the just" (Luk 14:14).