Psalm 74 and Proverbs 19. "The heart is wicked and frets against the Lord."

"The day is thine, the night also is thine: thou hast prepared the light and the sun."

-Psalm 74:16

"The foolishness of man perverteth his way: and his heart fretteth against the Lord."

-Proverbs 19:3

We cannot trust some matters to ourselves, for there is that trace of wickedness; cast it to our fellows, and cast it to God most importantly.