That I may know him, and the power of his resurrection, and the fellowship of his sufferings, being made conformable unto his death; If by any means I might attain unto the resurrection of the dead. Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus. Brethren, I count not myself to have apprehended: but this one thing I do, forgetting those things which are behind, and reaching forth unto those things which are before, I press toward the mark for the prize of the high calling of God in Christ Jesus.
Thomas Boston wrote:
Were it so that the believer only apprehended Christ, but Christ apprehended not him, we could promise little as to the stability of such a union, it might quickly be dissolved; but as the believer apprehends Christ by faith, so Christ apprehends him by His Spirit, and none shall pluck him out of His hand. Did the child only keep hold of the nurse, it might at length grow weary, and let go its hold, and so fall away: but if she have her arms about the child, it is in no hazard of falling away, even though it be not actually holding by her. So, whatever sinful intermissions may happen in the exercise of faith, yet the union remains sure, by reason of the constant indwelling of the Spirit.