But of all the scattered memorials that have come down to us respecting this beautiful friendship between the great Apostle and his chief disciple, the two letters of the older friend to the younger are by far the chief. And there is so much in them that fits with exquisite nicety into the known conditions of the case, that it is hard to imagine how any forger of the second century could so have thrown himself into the situation. Where else in that age have we evidence of any such literary and historical skill? The tenderness and affection, the anxiety and sadness, the tact and discretion, the strength and large-mindedness of St. Paul are all there; and his relation to his younger but much-trusted disciple is quite naturally sustained throughout. Against this it is not much to urge that there are some forty words and phrases in these Epistles which do not occur in the other Epistles of St. Paul. The explanation of that fact is easy. Partly they are words which in his other Epistles he had no need to use; partly they are words which the circumstances of these later letters suggested to him, and which those of the earlier letters did not. The vocabulary of every man of active mind who reads and mixes with other men, especially if he travels much, is perpetually changing. He comes across new metaphors, new figures of speech, remembers them, and uses them. The reading of such a work as Darwin's _Origin of Species_ gives a man command of a new sphere of thought and expression. The conversation of such a man as "Luke the beloved physician" would have a similar effect on St. Paul. We shall never know the minds or the circumstances which suggested to him the language which has now become our own possession; and it is unreasonable to suppose that the process of assimilation came to a dead stop in the Apostle's mind when he finished the Epistles of the first imprisonment. The result, therefore, of this brief survey of the life of Timothy is to confirm rather than to shake our belief that the letters which are addressed to him were really written by his friend St. Paul.