Jamieson, Fausset and Brown on Philippians 3:11

11. If by any means--not implying uncertainty of the issue, but the earnestness of the struggle of faith (1Co 9:26, 27), and the urgent need of jealous self-watchfulness (1Co 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 (1Co 15:23; 1Th 4:15; Re 20:5, 6). The Greek word occurs nowhere else in the New Testament. "The power of Christ's resurrection" (Ro 1:4), ensures the believer's attainment of the "resurrection from the (rest of the) dead" (compare Php 3:20, 21). Compare "accounted worthy to obtain the resurrection from the dead" (Lu 20:35). "The resurrection of the just" (Lu 14:14).