ectypal.net

...the communion confirmed in the Supper is not, nor can be, any other than that generated by the Word. In exactly the same manner in which a person is incorporated by faith into Christ, so that person is also strengthened and confirmed in that communion by the Lord’s Supper. There simply is no other or higher communion. Those who believe become Christ’s possession in body and soul; and those who receive the Lord’s Supper in faith are confirmed in and reassured of that reality. The sacrament does not supply any other grace; it merely supplies the same grace for the strengthening of faith—only by another means.