Kohelet 11:2; Kohelet 11:5-6; Kohelet 11:8-9

Kohelet 11:2

2 Give chelek (portions) to shivah, and also to shmonah; for thou knowest not what ra’ah shall be upon ha’aretz.

Kohelet 11:5-6

5 As thou knowest not what is the derech haruach [see Yn 3:3-8], nor how the bones do grow in the womb of her that is with child; even so thou knowest not the ma’asei HaElohim who maketh all.

6 In the boker sow thy zera, and in the erev do not let thine hand be idle; for thou knowest not which shall prosper, either this or that, or whether they both shall be alike tovim.

Kohelet 11:8-9

8 But if haAdam live many shanim, and rejoice in them all; yet let him remember the yamim of choshech; for they shall be many. All that cometh is hevel.

9 Rejoice, O bochur, in thy yaldut (youth); and let thy lev cheer thee in the yamim of thy bechurim (youth), and walk in the ways of thine lev, and in the sight of thine eynayim; but have da’as of this; that for all these things HaElohim will bring thee into mishpat.