Through...

When you pass through the waters, I will be with you,
and through the rivers, they will not overwhelm you.
When you walk through the fire, you will not be burned or scorched,
nor will the flame kindle upon you.
Isaiah 43: 2

It does not say we won't experience threats, but promises we will go "through" them.  Going through has a starting AND ending point, most times the object going through maintains its form.  God not only promises
a start and an end to our trials, but we can also depend on knowing we will not be alone, overwhelmed, burned, scorched, nor will we be consumed. 

Water has the potential to drown and fire to burn, but God...
We find ourselves in deep water, but God...
We feel the heat, but God...
God is the difference between our entry and our exit.