The glory of young men is their strength,.... That is the excellent thing in them, and it is to their honour when it is employed in the service of their king and country, and especially in the service of God and religion; though it does not become them to glory in it, Jer 9:23; and the beauty of old men is the gray head; an index of wisdom and prudence; see Job 12:12. The design of the proverb is to show that both have their excellencies and usefulness, young men and old men, and should not despise one another; nor either of them be despised in a commonwealth, both being useful in it, the one for strength, the other for counsel; and so in the church of Christ; see Jo1 2:13.