Examine yourselves whether ye be in the faith,.... These words are to be considered in connection with 2Co 13:3 for seeing they sought and demanded a proof the voice and power of Christ in the apostle, he directs them to self examination, to look within themselves, to try, prove, and recognise their own souls; where if things were right, they would find a proof of Christ's speaking in him, to them: he advises them to examine the state of their own souls, and see whether they were in the faith; either in the doctrine of faith, having a spiritual and experimental knowledge of it, true love and affection for it, an hearty belief of it, having felt the power of it upon their souls, and abode in it; whether, as the Syriac version reads it, Nymyq atwnmyhb, "ye stand in the faith", firm and stable; or in the grace of faith, either of miracles, or that which is connected with salvation; and which if they were in it, and had it, is attended with good works; operates by love to Christ and to his people; by which souls go out of themselves to Christ, live upon him, receive from him, and give him all the glory of salvation: and if this was their case, he desires to know how they came by their faith; and suggests, that their light in the doctrine of the Gospel, and their faith in Christ Jesus, as well as the miraculous gifts many of them were possessed of, were through his ministry as the means; and this was a full proof of Christ's speaking in him:prove your own selves.
Know ye not your own selves, how that Jesus Christ is in you; by which he means, that if they took a survey of things in their own souls, it would appear that Christ was in them; not as he is in all the world, filling heaven and earth with his presence; or as he is in every rational creature, as the Creator and author of the light of nature; but in a special and spiritual manner, by his Spirit and grace; the Father reveals him in his people, as the foundation of their hope of glory; he himself enters and takes possession of their hearts in conversion, communicates his grace, and manifests himself, and is formed there by his Spirit; his graces are implanted, his image is stamped, his Spirit is put within them, and he himself dwells by faith: and this upon inquiry would be found to be the case of the Corinthians,except, says the apostle,ye are reprobates; meaning not that they were so, as such may stand opposed to the elect of God; for persons may as yet neither be in the faith, nor Christ in them, and yet both be hereafter, and so not be left of God, or consigned to destruction; but that if they were not in the doctrine of, faith, then they were reprobate concerning it, or void of judgment in it; and if they had not the grace of faith, and Christ was not in them, then they were not genuine, but nominal professors, like "reprobate silver", counterfeit coin; which when detected, would be "disapproved", not only by God, but man, as this word also signifies, and so stands opposed to them that are "approved", 2Co 13:7 or if they did not make such an examination, probation, and recognition of themselves, they would be without probation: or as the Arabic version, without experiment.