Unpredictable

Life is unpredictable
That is the most common fact

You really can't predict your future based on the present time.
You can't predict of who you will become in the future based on who you are right now.

Remember the metamorphosis of a caterpillar to become a butterfly.
Do you see any body property of a caterpillar that shows you that he will (definitely) someday become a butterfly?
No signs at all!
But yet every caterpillar transforms into a butterfly.

Remember Joseph's promotion to be a second Egypt leader after he stayed in the jail for a crime he didn't commit.
Do you see any clear signs of Joseph's former condition as a prisoner that makes you think he will be able to get out of the jail and become an important person second to Pharaoh?
No positive signs at all!
Even the chief wine-servant and the chief bread-maker were totally forgot about him after they have been released...
But yet, at its time, Joseph was promoted to be a second leader after Pharaoh.

Even in God, our life is still unpredictable...
But He had promised:

"For without doubt there is a future, and your hope will not be cut off."
(Proverbs 23:18)

and...

"And we know that all things work together for good to those who love God, to those who are the called according to His purpose."
(Rome 8:28)

...as long as we keep following Him.

He is able

...and nothing is impossible in His plan for us.

Jiayou!!!