The greeting with which St. Paul introduces his Epistles is much alike in them all, but it never becomes a mere formality, and ought not to pass unregarded as such. It describes, as a rule, the character in which he writes, and the character in which his correspondents are addressed. Here he is an apostle of Jesus Christ, divinely commissioned; and he addresses a Christian community at Corinth, including in it, for the purposes of his letter, the scattered Christians to be found in the other quarters of Achaia. His letters are occasional, in the sense that some special incident or situation called them forth; but this occasional character does not lessen their value. He addresses himself to the incident or situation in the consciousness of his apostolic vocation; he writes to a Church constituted for permanence, or at least for such duration as this transitory world can have; and what we have in his Epistles is not a series of _obiter dicta_, the casual utterances of an irresponsible person; it is the mind of Christ authoritatively given upon the questions raised. When he includes any other person in the salutation--as in this place "Timothy our brother"--it is rather as a mark of courtesy, than as adding to the Epistle another authority besides his own. Timothy had helped to found the Church at Corinth; Paul had shown great anxiety about his reception by the Corinthians, when he started to visit that turbulent Church alone (1 Cor. xvi. 10 f.); and in this new letter he honours him in their eyes by uniting his name with his own in the superscription. The Apostle and his affectionate fellow-worker wish the Corinthians, as they wished all the Churches, grace and peace from God our Father and the Lord Jesus Christ. It is not necessary to expound afresh the meaning and connexion of these two New Testament ideas: grace is the first and last word of the Gospel; and peace--perfect spiritual soundness--is the finished work of grace in the soul.