Ecclesiastes 9:8

9:8 Let your clothes always be white,

and do not spare precious ointment on your head.

Ecclesiastes 11:8

11:8 So, if a man lives many years, let him rejoice in them all,

but let him remember that the days of darkness ¹  will be many – all that is about to come is obscure. ² 

Ecclesiastes 5:2

5:2 Do not be rash with your mouth or hasty in your heart to bring up a matter before God,

for God is in heaven and you are on earth!

Therefore, let your words be few.

[11:8]  ¹ tn The phrase “the days of darkness” refers to the onset of old age (Eccl 12:1-5) and the inevitable experience of death (Eccl 11:7-8; 12:6-7). Elsewhere, “darkness” is a figure of speech (metonymy of association) for death (Job 10:21-22; 17:13; 18:18).

[11:8]  ² tn The term הֶבֶל (hevel) here means “obscure,” that is, unknown. This sense is derived from the literal concept of breath, vapor or wind that cannot be seen; thus, the idea of “obscure; dark; difficult to understand; enigmatic” (see HALOT 236–37 s.v. I הֶבֶל; BDB 210–11 s.v. I הֶבֶל). It is used in this sense in reference to enigmas in life (6:2; 8:10, 14) and the future which is obscure (11:8).