1 Timothy 4:8

For physical training is of some value, but godliness has value for all things, holding promise for both the present life and the life to come. 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. for bodily discipline is only of little profit, but godliness is profitable for all things, since it holds promise for the present life and also for the life to come. 1 Timothy 4:8

Commentary Physical exercise is important, but spiritual exercise is even more essential. Both discipline and devotion are needed to make a winning athlete and an effective Christian. Wiersbe, W. W. (1997, c1991). With the word Bible commentary (1 Ti 4:1). Nashville: Thomas Nelson.