[[1]] This proves that this form of thought is not Semitic; had it been so, the Spirit would scarcely have been masculine.
[[2]] It would be unfair and misleading to say the doctrine of the Trinity. That doctrine is not the statement of the "threeness" of God, but of the relation which this bears to his unity.
[[3]] No doubt the "threeness" was emphasised by the habit of three immersions in baptism, whatever the origin of this practice may be, and by philosophic reflections as to the properties of triangles such as are found in Philo.
[[4]] Illuminating suggestions can be found in F. C. Conybeare's The Key of Truth and in H. Usener's Weihnachtsfest.
[[5]] In the Earlier Epistles of St. Paul, pp. 335 ff. (especially p. 368), I suggested that the shorter recension of the Epistle to the Romans, the existence of which is proved by the evidence of the Latin breves, Tertullian, Cyprian, and Marcion, and by the textual confusion surrounding the final doxology, may be the same as that which omits all mention of Rome, and that, if so, it was probably written originally for some other destination. This suggestion has met with little approbation from critics, but with even less discussion. I still think that it is worth consideration.