And when he had called the people unto him with his disciples also, he said unto them, Whosoever will come after me, let him deny himself, and take up his cross, and follow me. Whosoever will come after me - It seems that Christ formed, on the proselytism of the Jews, the principal qualities which he required in the proselytes of his covenant.
The first condition of proselytism among the Jews was, that he that came to embrace their religion should come voluntarily, and that neither force nor influence should be employed in this business. This is also the first condition required by Jesus Christ, and which he considers as the foundation of all the rest: - If a man be willing to come after me.
The second condition required in the Jewish proselyte was, that he should perfectly renounce all his prejudices, his errors, his idolatry, and every thing that concerned his false religion; and that he should entirely separate himself from his most intimate friends and acquaintances. It was on this ground that the Jews called proselytism a new birth, and proselytes new-born, and new men; and our Lord requires men to be born again, not only of water, but by the Holy Ghost. See John 3:5. All this our Lord includes in this word, Let him renounce himself. To this the following scriptures refer: Matthew 10:33; John 3:3, John 3:5, 2 Corinthians 5:17.
The third condition on which a person was admitted into the Jewish Church as a proselyte was, that he should submit to the yoke of the Jewish law, and bear patiently the inconveniences and sufferings with which a profession of the Mosaic religion might be accompanied. Christ requires the same condition; but, instead of the yoke of the law, he brings in his own doctrine, which he calls his yoke, Matthew 11:29 : and his cross, the taking up of which not only implies a bold profession of Christ crucified, but also a cheerful submitting to all the sufferings and persecutions to which he might be exposed, and even to death itself.
The fourth condition was, that they should solemnly engage to continue in the Jewish religion, faithful even unto death. This condition Christ also requires; and it is comprised in this word, Let him Follow me. See the following verses; and see, on the subject of proselytism, Ruth 1:16, Ruth 1:17 (note).