And lastly, we ought to walk in brotherly love, as being _baptized by the Spirit into one body_, 1 Cor. xii. 13. They who are partakers of the saving blessings signified by baptism, have ground to conclude themselves members of Christ’s mystical body, or the invisible church, of which he is the head. This is a spiritual baptism, being the effect of divine power, and the special work of the Holy Ghost; and certainly this will be an inducement to all who are partakers thereof, to walk together in brotherly love, as those who are favoured with the same privileges, and hope to enjoy that complete blessedness, in which they, who are before devoted to Christ, shall be for ever with him. Thus concerning the ordinance of baptism. And now we are led to speak concerning the sacrament of the Lord’s supper, which is considered either absolutely in itself, or as compared with baptism. And accordingly it is enquired; wherein they agree, or differ. In considering the nature of the Lord’s supper, it is farther enquired; how they, who are to partake of it, ought to prepare themselves for it before they engage therein? And there are also two cases of conscience answered; the one respecting those who are not satisfied concerning their meetness for it; the other respecting those who ought to be kept from it. We have also an account of the duties of communicants, while they are engaged in this ordinance; or those that are incumbent on them, after they have attended on it. These things are particularly insisted on in several following answers, which we are now led to consider. Quest. CLXVIII., CLXIX., CLXX. QUEST. CLXVIII. _What is the Lord’s Supper?_ ANSW. The Lord’s supper is a sacrament of the New Testament, wherein by giving and receiving bread and wine, according to the appointment of Jesus Christ, his death is shewed forth; and they that worthily communicate, feed upon his body and blood, to their spiritual nourishment and growth in grace, have their union and communion with him confirmed, testify and renew their thankfulness, and engagement to God, and their mutual love and fellowship each with other, as members of the same mystical body. QUEST. CLXIX. _How hath Christ appointed bread and wine to be given and received in the sacrament of the Lord’s supper?_ ANSW. Christ hath appointed the ministers of his word, in the administration of this sacrament of the Lord’s supper, to set apart the bread and wine from common use, by the word of institution, thanksgiving, and prayer, to take and break the bread, and to give both the bread, and the wine to the communicants, who are, by the same appointment, to take, and eat the bread, and to drink the wine, in thankful remembrance, that the body of Christ was broken and given, and his blood shed for them.