Nor is the light which the letter throws on the character of the Apostle to be regarded as unimportant. The warmth, the delicacy, and what, if it were not so spontaneous, we might call tact, the graceful ingenuity with which he pleads for the fugitive, the perfect courtesy of every word, the gleam of playfulness--all fused together and harmonized to one end, and that in so brief a compass and with such unstudied ease and complete self-oblivion, make this Epistle a pure gem. Without thought of effect, and with complete unconsciousness, this man beats all the famous letter-writers on their own ground. That must have been a great intellect, and closely conversant with the Fountain of all light and beauty, which could shape the profound and far-reaching teachings of the Epistle to the Colossians, and pass from them to the graceful simplicity and sweet kindliness of this exquisite letter; as if Michael Angelo had gone straight from smiting his magnificent Moses from the marble mass to incise some delicate and tiny figure of Love or Friendship on a cameo. The structure of the letter is of the utmost simplicity. It is not so much a structure as a flow. There is the usual superscription and salutation, followed, according to Paul's custom, by the expression of his thankful recognition of the love and faith of Philemon and his prayer for the perfecting of these. Then he goes straight to the business in hand, and with incomparable persuasiveness pleads for a welcome to Onesimus, bringing all possible reasons to converge on that one request, with an ingenious eloquence born of earnestness. Having poured out his heart in this pleasure adds no more but affectionate greetings from his companions and himself. In the present section we shall confine our attention to the superscription and opening salutation.