Hebrews 11:1 Now faith is the substance of things hoped for, the evidence of things not seen.
A.W. Tozer had an interesting commentary on this verse. He said: "Faith is seeing the invisible, but not the nonexistent."
We live in a world today that seems out of control -- yet the Word clearly tells us that God remains in control.
When the Israelites were driven to the Red Sea their situation appeared impossible and desperate through human eyes. They failed their first test of faith when they told Moses it would have been better to serve as slaves than to die in the wilderness. [Exodus 14:10-12] Though they had seen His miracles of deliverance from slavery in Egypt, they failed to remember to encourage themselves with this recent history of Divine intervention.
YHVH allowed the "impossible situation" to test their faith and to reveal His glory and power!
Biblical faith believes and stands upon the invisible reality of God's presence, power, and protection, in difficult, even impossible circumstances. People of faith keep our eyes on Heaven where the Lord's sovereignty over all earthly events inspires trust which is not based on what we see, but remembers how our invisible God has delivered, preserved, and protected us in the past.
Let's not fail the test as the Israelities did, wishing they were back in Egypt! There are times when life places us in "impossible situations" which our Lord allows to test our faith and to reveal Himself and His glory. Whatever impossible situation you may be facing, encourage yourself with memories of God's past faithfulness and blessed providence. You will not know from where or how the deliverance will come. But do not allow the "invisibility" of the solution to throw you into doubt or panic. Stand firm in what you do not see, and then, see the salvation of the Lord!