You do not know what a day may bring forth!

(James Smith, "Ignorance of the Future" 1856)

"Do not boast about tomorrow, for you do not know what a day may bring forth!" Proverbs 27:1

We are totally ignorant of the future!
It may be prosperous — or it may be adverse.
We may suffer much from sickness — or we may enjoy sound health.
We may meet with accidents — or we may be graciously preserved from them.
We may be losers by calamity or wicked men — or God may set a hedge about us, as He did about Job.
We may be bereaved of our children, other near relatives or dear friends — or we may be summoned by death to appear before God ourselves!

We do not know what our lot may be in future. We are profoundly ignorant of it. But all is arranged — and arranged by our good, gracious, and infinitely wise God. Nothing is left to 'chance'.

Whatever may happen in the future, into whatever circumstances we may be brought — we should exercise confidence in God, hope still in His mercy, and plead earnestly at His throne of grace, believing that He has . . .
  ordered all things in His love,
  arranged all in His infinite wisdom, and
  will overrule all for our ultimate good!

"My times are in Your hands!" Psalm 31:15