Answer: The verse is not intended to raise the least doubt or uncertainty in the believer’s mind, but to convey the deep blessedness of that glorious goal, the “out-resurrection” from the as the apostle puts it here only. So incomparable was it in his eyes that, in the view grace gave him of it, he welcomed the fellowship of Christ’s sufferings, being conformed to His death (as indeed he was to be literally), if in any way to arrive at that wondrous result of Christ’s resurrection. He minded no labors nor pains nor shame meanwhile to win and know Christ thus. He would not have his own righteousness if he could, which is of law-nothing but what is by faith of Christ, the righteousness that is of God conditioned by faith: all of His grace, and in His righteousness, and according to Christ both along the way and at the end in glory.