John. There is in the same place mentioned another Trinity of witnesses in earth. For (1 John 5:8) he saith, “there are three that bear witness in earth, the Spirit, and the water, and the blood, and these three agree in one”: that is to say, the graces of God’s spirit, and the two sacraments, baptism and the Lord’s Supper, which all agree in one testimony to assure the consciences of believers of eternal life; of which testimony he saith (verse 10), “He that believeth on the Son of man hath the witness in himself.” In this Trinity on earth, the unity is not of the thing; for the Spirit, the water, and the blood, are not the same substance, though they give the same testimony: but in the Trinity of heaven, the persons are the persons of one and the same God, though represented in three different times and occasions. To conclude, the doctrine of the Trinity, as far as can be gathered directly from the Scripture, is in substance this, that the God who is always one and the same, was the person represented by Moses; the person represented by his Son incarnate; and the person represented by the apostles.