6 If thou put the brethren in remembrance of these things, thou shalt be a good minister of Jesus Christ, nourished up in the words of faith and of good doctrine, whereunto thou hast attained.
7 But refuse profane and old wives’ fables, and exercise thyself rather unto godliness.
8 For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.
9 This is a faithful saying and worthy of all acceptation.
10 For therefore we both labour and suffer reproach, because we trust in the living God, who is the Saviour of all men, specially of those that believe.
Here is an admonition that when you hear good teachings, it is best to pass them on. That way you know if you really understood them yourself, and it can encourage other people. If you heard a great homily and run into a friend who wasn’t there, see if you can give them the main points that would be helpful. It will bring you to a deeper understanding of the concepts as well.
Verse seven cautions to go by facts, rather than rumour and hearsay. As an example, Paul uses exercise/sports. Going out walking and keeping your body healthy is important, but doesn’t save your soul. We should work just as hard at our spiritual health because it is even more crucial.
There is a Middle Ages book called Piers Plowman that addresses this idea. In it there are three paths of life presented. Dowell = Do well by working hard at physical exercise and labour. Dobett = Do better by instead studying and working on godliness. Dobest = Do best by combining both and looking after both physical and spiritual aspects.
If this seems too hard, there is a reminder that the most important thing to pay attention to is that our hope is in God, not what we can accomplish on our own.