When the Bible speaks of the strength of youth, it does not have in mind merely muscles. After all, God “taketh not pleasure in the legs of a man” (Ps. 147:10, a verse oft repeated to a sports-crazed young man by a wise grandmother).
Rather, the word of God has in mind spiritual strength. This is evident from the rest of 1 John 2:14 when it says to young men, “…I have written unto you, young men, because ye are strong….” What ought to characterize mature Christian men, and young men in particular, is that they are strong spiritually.
—‘Be strong’ by Rev. Joshua Engelsma in the upcoming October 1, 2018 issue of the Standard Bearer.