Reference

Ecclesiastes 11:9

Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thine heart, and in the sight of thine eyes: but know thou, that for all these things God will bring thee into judgment.
7

Truly the light is sweet, and a pleasant thing it is for the eyes to behold the sun:

8

But if a man live many years, and rejoice in them all; yet let him remember the days of darkness; for they shall be many. All that cometh is vanity.

9

Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thine heart, and in the sight of thine eyes: but know thou, that for all these things God will bring thee into judgment.

10

Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth are vanity.

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Time-Bound Fulfillment

The verse speaks of a general period of "youth" and "days of thy youth," which are not defined durations or specific prophecies. The judgment mentioned is a future event, not a fulfillment recognized within a specific time frame.