Saviour instituted the same for a Sacrament to be taken by all that beleeved in him.  From what cause the rite of Baptisme first proceeded, is not expressed formally in the Scripture; but it may be probably thought to be an imitation of the law of Moses, concerning Leprousie; wherein the Leprous man was commanded to be kept out of the campe of Israel for a certain time; after which time being judged by the Priest to be clean, hee was admitted into the campe after a solemne Washing.  And this may therefore bee a type of the Washing in Baptisme; wherein such men as are cleansed of the Leprousie of Sin by Faith, are received into the Church with the solemnity of Baptisme.  There is another conjecture drawn from the Ceremonies of the Gentiles, in a certain case that rarely happens; and that is, when a man that was thought dead, chanced to recover, other men made scruple to converse with him, as they would doe to converse with a Ghost, unlesse hee were received again into the number of men, by Washing, as Children new born were washed from the uncleannesse of their nativity, which was a kind of new birth.  This ceremony of the Greeks, in the time that Judaea was under the Dominion of Alexander, and the Greeks his successors, may probably enough have crept into the Religion of the Jews.  But seeing it is not likely our Saviour would countenance a Heathen rite, it is most likely it proceeded from the Legall Ceremony of Washing after Leprosie.  And for the other Sacraments, of eating the Paschall Lambe, it is manifestly imitated in the Sacrament of the Lords Supper; in which the Breaking of the Bread, and the pouring out of the Wine, do keep in memory our deliverance from the Misery of Sin, by Christs Passion, as the eating of the Paschall Lambe, kept in memory the deliverance of the Jewes out of the Bondage of Egypt.  Seeing therefore the authority of Moses was but subordinate, and hee but a Lieutenant to God; it followeth, that Christ, whose authority , as man, was to bee like that of Moses, was no more but subordinate to the authority of his Father.  The same is more expressely signified, by that that hee teacheth us to pray, “Our Father, Let thy Kingdome come;” and, “For thine is the Kingdome, the power and the Glory;” and by that it is said, that “Hee shall come in the Glory of his Father;” and by that which St. Paul saith, (1 Cor. 15.24.) “then commeth the end, when hee shall have delivered up the Kingdome to God, even the Father;” and by many other most expresse places.

One And The Same God Is The Person Represented By Moses, And By Christ Our Saviour therefore, both in Teaching, and Reigning, representeth (as Moses Did) the Person of God; which God from that time forward, but not before, is called the Father; and being still one and the same substance, is one Person as represented by Moses, and another Person as represented by his Sonne the Christ.  For Person being a relative to a Representer, it is consequent to plurality of Representers, that there bee a plurality of Persons, though of one and the same Substance.