Verse 1-4 — The promises of God are strong reasons for us to follow after holiness; we must cleanse ourselves from all filthiness of flesh and spirit. If we hope in God as our Father, we must seek to be holy as he is holy, and perfect as our Father in heaven. His grace, by the influences of his Spirit, alone can purify, but holiness should be the object of our constant prayers. If the ministers of the gospel are thought contemptible, there is danger lest the gospel itself be despised also; and though ministers must flatter none, yet they must be gentle towards all. Ministers may look for esteem and favour, when they can safely appeal to the people, that they have corrupted no man by false doctrines or flattering speeches; that they have defrauded no man; nor sought to promote their own interests so as to hurt any. It was affection to them made the apostle speak so freely to them, and caused him to glory of them, in all places, and upon all occasions.
Verse 5-11 — There were fightings without, or continual contentions with, and opposition from Jews and Gentiles; and there were fears within, and great concern for such as had embraced the Christian faith. But God comforts those who are cast down. We should look above and beyond all means and instruments, to God, as the author of all the consolation and good we enjoy. Sorrow according to the will of God, tending to the glory of God, and wrought by the Spirit of God, renders the heart humble, contrite, submissive, disposed to mortify every sin, and to walk in newness of life. And this repentance is connected with saving faith in Christ, and an interest in his atonement. There is a great difference between this sorrow of a godly sort, and the sorrow of the world. The happy fruits of true repentance are mentioned. Where the heart is changed, the life and actions will be changed. It wrought indignation at sin, at themselves, at the tempter and his instruments. It wrought a fear of watchfulness, and a cautious fear of sin. It wrought desire to be reconciled with God. It wrought zeal for duty, and against sin. It wrought revenge against sin and their own folly, by endeavours to make satisfaction for injuries done thereby. Deep humility before God, hatred of all sin, with faith in Christ, a new heart and a new life, make repentance unto salvation. May the Lord bestow it on every one of us.
Verse 12-16 — The apostle was not disappointed concerning them, which he signified to Titus; and he could with joy declare the confidence he had in them for the time to come. Here see the duties of a pastor and of his flock; the latter must lighten the troubles of the pastoral office, by respect and obedience; the former make a due return by his care of them, and cherish the flock by testimonies of satisfaction, joy, and tenderness.