is, the _catechumens_.--=The Sacramental part of the service=, the separation of which from the didactic part was rendered necessary on account alike of its nature and purpose, and is therefore found existing in the Pauline churches as well as in the church of Jerusalem, was scrupulously restricted in its observance, in Jewish and Gentile churches alike, to those who were in the full communion of the Christian church (Acts ii. 46; 1 Cor. xi. 20-23). The celebration of the Lord’s Supper (δεῖπνον κυριακόν, 1 Cor. xi. 21), after the pattern of the meal of institution, consisting of a meal partaken of in common, accompanied with prayer and the singing of a hymn, which at a later period was named the Ἀγάπη, as the expression of brotherly love (Jude _v._ 12), was the centre and end of these _evening_ services. The elements in the Lord’s Supper were consecrated to their sacramental purpose by a prayer of praise and thanksgiving (εὐχαριστία, 1 Cor. xi. 24; or εὐλογία, 1 Cor. x. 16), together with a recital of the words of institution which contained a proclamation of the death of Christ (1 Cor. xi. 26). This prayer was followed by the kiss of brotherhood.[10] In the service of song they used to all appearance besides the psalms some Christian hymns and doxologies (Eph. v. 19; Col. iii. 16).[11]--The homiletical as well as the eucharistic services were at first held daily; at a later period at least every Sunday.[12] For very soon, alongside of the Sabbath, and among Gentile Christians, instead of it, the first day of the week as the day of Christ’s resurrection began to be observed as a festival.[13] But there is as yet no trace of the observance of other festivals. It cannot be exactly proved that infant baptism was an Apostolic practice, but it is not improbable that it was so.[14] Baptism was administered by complete immersion (Acts viii. 38) in the name of Christ or of the Trinity (Matt. xxviii. 19). The charism of healing the sick was exercised by prayer and anointing with oil (Jas. v. 14). On the other hand, confession of sin even apart from the public service was recommended (Jas. v. 16). Charismatic communication of the Spirit and admission to office in the church[15] was accomplished by prayer and laying on of hands.[16]