William Burkitt on 1 Timothy 4:9

Note, That this phrase of a faithful saying, and worthy of all acceptation, used here, was used before, 1Tim 1:15. That Christ came into the world to save sinners.

Learn thence, That this proposition, that Jesus Christ came into the world to save sinners, and this, that such sinners as of ungodly will become godly, and persevere in the practice of godliness, shall be happy in the life that now is, and that which is to come; these two propositions are faithful and remarkable sayings, worthy of the acceptation of all reasonable creatures.

Note farther, that the belief of this proposition, that godliness has the promise of this and the next life, will cause all Christians, as it did St. Paul, to labour in the work of God, to suffer reproach in the cause of God, and this without weariness and fainting.

Note, lastly, The title given to Almighty God, The Saviour of all men; that is, the preserver of all men, but especially of all good men, when their temporal preservation conduces most to the advantage of his glory and their good: or if it be understood of eternal salvation, we must take it thus; that he publishes and proclains, offers and tenders, salvation to all men, although believers only are actually saved, because they only accept the offers and conditions of salvation.