WLC Q.176: Wherein do the sacraments of baptism and the Lord’s supper agree?
The sacraments of baptism and the Lord’s supper agree, in that the author of both is God; (Matt. 28:19, 1 Cor. 11:23) the spiritual part of both is Christ and his benefits; (Rom. 6:3–4, 1 Cor. 10:16) both are seals of the same covenant, (Rom. 4:11, Col. 2:12, Matt. 26:27–28) are to be dispensed by ministers of the gospel, and by none other; (John 1:33, Matt. 28:19, 1 Cor. 11:23, 1 Cor. 4:1, Heb. 5:4) and to be continued in the church of Christ until his second coming. (Matt. 28:19–20, 1 Cor. 11:26)