Not as though I had already attained, either were already perfect: but I follow after, if indeed I may apprehend that for which also I am apprehended of Christ Jesus.
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Ambrosiaster
AD 400
Throughout the letter Paul bears witness to his joy in them and praises their obedience and faith. He is, however, concerned that they, like all who are subject to human conceits, might become elated as though they were already worthy. So he tells them openly, speaking of his own person, that something is still wanting for perfect righteousness. He urges them to good works. If he who is adorned with such dignity confesses that he is still wanting in perfection, they would understand how much more they must work to acquire the blessings of righteousness. .
Brethren, I count not myself to have apprehended: but this one thing I do, forgetting the things which are behind, and stretching forth to those that are before, I press toward the mark, for the prize of the high calling in Christ Jesus."
Christ by his sufferings has set free all who follow him. He embraces everyone, but especially those who follow. The one who wants to follow and embrace Christ is bound to follow Christ in all his sufferings. Only in this way may he embrace Christ as Christ embraces him. For if Christ set everyone free by his sufferings, he embraces everyone in his sufferings.
Not as though I had already attained the happiness I hope for, or am now become perfect as to that perfection in virtue, which I must always endeavour to increase in; but, like a person still running a race for a prize, I pursue and run as well as I can, I stretch myself with perseverance towards the mark, forgetting that part of the course which I had made. Let all of us, though perfect as to the knowledge of the mysteries we are to believe, be of this mind, that we are still to advance in the way of Christian perfection; and if any of you be of another mind, and think otherwise, God will reveal to you and teach you this truth, that we may all continue in the same rule of doctrine and discipline. We may here take notice with St. Chrysostom that it is not enough to believe, or have the true faith, but that we must strive and labour to the end in the way of perfection; secondly that St. Paul did not look upon himself absolutely certain of his salvation: and how much greater presumption ...
He says not “I run” but “I press on.” Consider how the pursuer strains in his pursuit. He sees nothing, he thrusts away all who impede him with great force, he cherishes his mind, his eye, his strength, his soul and his body, looking at nothing other than the crown. .
Not that I have already obtained. What means already obtained? He speaks of the prize, but if he who had endured such sufferings, he who was persecuted, he who had in him the dying of the Lord Jesus, was not yet confident about that resurrection, what can we say? What means, if I may apprehend? What he before said, If I may attain to the resurrection of the dead. 2 Corinthians 4:10 If I may apprehend, he says, His resurrection; i.e. if I may be able to endure so great things, if I may be able to imitate Him, if I may be able to become conformed to Him. For example, Christ suffered many things, He was spit upon, He was stricken, was scourged, at last He suffered what things he suffered. This is the entire course. Through all these things it is needful that men should endure the whole contest, and so come to His resurrection. Or he means this, if I am thought worthy to attain the glorious resurrection, which is a matter of confidence, in order to His resurrection. For if I am able to end...
Let the one, therefore, have the necessity of continuing; the other, further, even the power of not marrying. Secondly, if, according to the Scripture, they who shall be "apprehended".
If these things may happen to those women also who, having attained the faith while in (the state of) Gentile matrimony, continue in that state, still they are excused, as having been "apprehended by God"
