II Tim. 3:14 ... "Continue in the things you have learned and become convinced of."
A seafarer spies on the horizon a green speck that indicates a tropical island. As he sails closer, he can distinguish only the dense green of the jungle foliage, but upon landing and penetrating the mass of trees, all kinds of exotic wonders come into view: beautiful birds, gorgeous flowers, and crystal clear pools streaked with multi-colored fish that flash in the sunlight. The visitor is glad that he stopped and entered this tropical paradise.
The text above is analogous to the picture just drawn. A casual reading of it conveys a blur about continuing in something that you have learned and been assured of. But if you pause to penetrate the sentence and really see what it contains, you will find a wealth of great ideas with rich and important meaning.
First, we recognize the gospel of Christ as the focus of attention, appreciation, and duty. It is that body of spiritual truth which must be learned, accepted, and continually applied to one's life because (1) it generates faith, (2) it offers salvation, (3) it comes from God, (4) it teaches the way of life, (5) it reproves, (6) it corrects, and (7) it instructs in righteousness, (vs. 15-16). These benefits of the gospel, when you accept it into your life, are invaluable, for they will identify you as a "man of God," that is, one who belongs to God. No more is needed in the education and regulation of the Christian life, since the gospel will make you "adequate" and "equipped for every good work." (v. 17)
Second, you must exercise yourself to learn the gospel. This implies the motivation and willingness to learn that enables you to be diligent in regular, inquiring study. Two things are needed for the growth and good health of your body, wholesome food and proper exercise. The same is true for your soul, and the gospel provides both opportunitites. By assimilating it in your mind, it nurtures your soul; and by struggling to regulate your life by its precepts, it strengthens your soul. This combination develops the person who avails himself of it into a full grown, strong disciple of Christ. In Paul's address to the Ephesians in Acts 20:32, he said, "I commend you to God and to the word of His grace, which is able to build you up."
Third, you must be persistent and loyal in applying the gospel to your life, yielding your thinking, speech, and conduct to the formative action of its doctrine. In I Cor. 9:27 the apostle declared, "I buffet my body and make it my slave, lest possibly, after I have preached to others, I myself should be disqualified." Paul had just spoken of athletes who trained for the Greek games. Their exercise had to be regular and intensive if they hoped to win any honor. Likewise, the Christian must be regular and intensive in exercising his life in the application of the gospel in order to obtain the crown of eternal life, (I Cor. 9:24-25).
Fourth, the lead text above infers that someone will function as a teacher of the gospel, for someone (probably his mother Lois and grandmother Eunice) had taught the gospel to Timothy and convinced him of its truth. If someone is a learner, then someone else is a teacher. Those who have made sufficient progress in learning the gospel and experiencing it in their life situations are expected by its Author to devote themselves with interest and joy to sharing their knowledge and insight with those who are trying to learn, (Mat.28:19-20; Heb. 5:12).
Fifth, the teacher is to do more than just present the gospel as a body of knowledge to the learner. He must also labor to convince the learner of its truth, its power, and its eternal relevance. This is only possible when the teacher himself has already been thoroughly convinced of these things to the point where he trusts their reality with all his heart and mind. No one can build confidence in another of the truth of a declaration unless he himself has no doubts about it. The gospel has been fully confirmed by the power of the Holy Spirit, (Heb.2:1-4).