Ecclesiastes 3:1 To every thing there is a season, and a time to every purpose under the heaven:

Ecclesiastes 3:11 He hath made every thing beautiful in his time: also he hath set the world in their heart, so that no man can find out the work that God maketh from the beginning to the end.

Ecclesiastes 9:10 Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest.

Ecclesiastes 8:11 Because sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil.

Proverbs 27:1 Boast not thyself of to morrow; for thou knowest not what a day may bring forth.