Philippians 3:10

That I may know him--experimentally. The aim of the "righteousness" just mentioned. This verse resumes, and more fully explains, "the excellency of the knowledge of Christ" (Phi 3:8). To know HIM is more than merely to know a doctrine about Him. Believers are brought not only to redemption, but to the Redeemer Himself. the power of his resurrection--assuring believers of their justification (Rom 4:25; Co1 15:17), and raising them up spiritually with Him, by virtue of their identification with Him in this, as in all the acts of His redeeming work for us (Rom 6:4; Col 2:12; Col 3:1). The power of the Divine Spirit, which raised Him from literal death, is the same which raises believers from spiritual death now (Eph 1:19-20), and shall raise their bodies from literal death hereafter (Rom 8:11). the fellowship of his sufferings--by identification with Him in His sufferings and death, by imputation; also, in actually bearing the cross whatever is laid on us, after His example, and so "filling up that which is behind of the afflictions of Christ" (Col 1:24); and in the will to bear aught for His sake (Mat 10:38; Mat 16:24; Ti2 2:11). As He bore all our sufferings (Isa 53:4), so we participate in His. made conformable unto his death--"conformed to the likeness of His death," namely, by continued sufferings for His sake, and mortifying of the carnal self (Rom 8:29; Co1 15:31; Co2 4:10-12; Gal 2:20).

— Jamieson-Fausset-Brown Commentary (public domain)