When I shall send Artemas unto thee - This person is not elsewhere mentioned in the New Testament, and nothing more is known of him.

Or Tychicus - Notes, Acts 20:4.

Be diligent - Notes, 2 Timothy 4:9. "To come unto me to Nicopolis." It was at this place, probably, that this epistle was written. In regard to its situation, see Introduction, Section 4.

For I have determined there to winter - Why Paul designed to spend the winter there, or what he purposed to do there, are questions on which no light can now be thrown. There is no evidence that he organized a church there, though it may be presumed that he preached the gospel, and that he did not do it without success. His requesting Titus to leave his important post and to come to him, looks as if his aid were needed in the work of the ministry there, and as if Paul supposed there was a promising field of labor there.

Titus 3:12 Parallel Commentaries

Whether the Foreknowledge of Merits is the Cause of Predestination?
Objection 1: It seems that foreknowledge of merits is the cause of predestination. For the Apostle says (Rom. 8:29): "Whom He foreknew, He also predestined." Again a gloss of Ambrose on Rom. 9:15: "I will have mercy upon whom I will have mercy" says: "I will give mercy to him who, I foresee, will turn to Me with his whole heart." Therefore it seems the foreknowledge of merits is the cause of predestination. Objection 2: Further, Divine predestination includes the divine will, which by no means can …
Saint Thomas Aquinas—Summa Theologica

Whether Heretics Ought to be Tolerated?
Objection 1: It seems that heretics ought to be tolerated. For the Apostle says (2 Tim. 2:24,25): "The servant of the Lord must not wrangle . . . with modesty admonishing them that resist the truth, if peradventure God may give them repentance to know the truth, and they may recover themselves from the snares of the devil." Now if heretics are not tolerated but put to death, they lose the opportunity of repentance. Therefore it seems contrary to the Apostle's command. Objection 2: Further, whatever …
Saint Thomas Aquinas—Summa Theologica

Salvation by Grace. Titus 3:3-7.
Salvation by grace. Titus 3:3-7. [Lord, we confess our num'rous faults, How great our guilt has been! Foolish and vain were all our thoughts, And all our lives were sin. But, O my soul! for ever praise, For ever love his name, Who turns thy feet from dangerous ways Of folly, sin, and shame.] ['Tis not by works of righteousness Which our own hands have done; But we are saved by sovereign grace Abounding through his Son.] 'Tis from the mercy of our God That all our hopes begin; 'Tis by the water …
Isaac Watts—The Psalms and Hymns of Isaac Watts