O Timothy is a monthly magazine in its 17th year of publication. Way of Life publishes many helpful books. One understands it to be a warning about the sin of divisiveness. The other understands it to be a warning about those who teach false doctrine. The 'doctrine ye have learned' is the pattern given in this epistle.
Apostolic teaching is the only standard of comparison.
Divisions and offences are themselves contrary to that doctrine, and also are occasioned through departure from it. We need not suppose that these agitators and false teachers had actually invaded the Roman scene. Probably they had not. If they had we would expect direct encounter with them in the body of the epistle, as, for example, in the epistles to the Galatians and Colossians. But Paul was well aware of the existence of these heretics and, if their propaganda had not reached Rome, there was good ground for fear that the danger was impending.