Paul, an apostle of Jesus Christ by the will of God. — As in the Epistles to the Corinthians, the Ephesians, and Colossians, he ascribes his apostleship to the sovereign will and election of God. Apart from any merit or work of his own, God chose him for the office. He neither aspired to it nor wished for it. The reference to the Almighty will in this Epistle is singularly in harmony with the spirit of calm resignation which breathes through it. It was that sovereign will which chose him as an Apostle, which guided him all through that eventful life of his, and which brought him to the prison of the Cæsar, where, face to face with death, he wrote this last letter to his friend and disciple Timothy.
According to the promise of life which is in Christ Jesus. — The Greek word rendered “according to” should here be translated “for the promise of life.” This preposition here denotes the object or intention of his appointment as apostle, which was to make known, to publish abroad, the promise of eternal life. Almost the first words of an Epistle, written evidently under the expectation of death, dwell upon the promise of life — the life which knows no ending — the life in Christ. The central point of all Evangelical preaching was the true, blessed life eternal, that life which, in the person of the Redeemer, was revealed to man, and which, through the Redeemer, is offered to the sinner.