In God, whose word I praise, in the LORD, whose word I praise,
In God I have put my trust, I shall not be afraid.
What can man do to me?
Psalm 56:10-11

This is a Psalm of David.  The same man who killed lions & bears,
the same man who killed Goliath is now afraid the Philistines were
trying to kill him.  Yet, David refused to take matters into his own
hands.  He trusted God to do what is right.

Still, he was afraid.

When God does not move in our time or in our way, we can also become
afraid.  We can be tempted to rush out in our own strength to do
something about our desperate situation.  David refused.

But he was still afraid.

Look at how David refers to God in these verses. He first refers to
Him as God, which in the Hebrew is the word elohim—the word for God
signifying divine authority or justice.  David is literally saying,

God, you are the ultimate Divine Authority (or Judge) in this world.
You will do what is right; therefore, I will trust you.

Yet, David zeroes in a little more specifically upon who God is by
referring to Him as LORD.  This is the word Yahweh, which means “the
One who was, who is, and who is to come.”  Here, David is saying,

LORD, you are the One who can truly change this situation. Nothing is too hard for you. You were working; You are working; You will continue working;You can change things that are IMPOSSIBLE for me to change. Therefore, I will put my trust in you.

David then says, I shall not be afraid. He is speaking to his soul—

“when I am afraid, I will put my trust in You.”

Do you speak to your soul like this when you are afraid?

You should.

Like David, you need to speak to yourself rather than listen to
yourself.  Consider what you think when you listen to yourself: I’m
stupid. I’m never going to make it out of this difficulty.  She’ll
never change.  He’ll always neglect me.  God doesn’t care about me.
We’re going to go bankrupt—I just know it… The list goes on and on.

Rather than listening to yourself, you need to speak TRUTH to
yourself.  Verses 10-11 would be very good for you to memorize to use
in your fight against despair.  David, though he was truly afraid,
said, in effect:

This is a very difficult situation, but I am going to trust in the Authority of this world, the One who is constantly at work even when I can’t see what’s going on.  I AM GOING TO FIX MY GAZE ON THE GREATNESS OF THIS GOD AND NOT SUCK ON THE FEAR THAT NATURALLY FLOWS FROM MY HEART.”

God has not given you a Spirit of fear but of POWER, and LOVE, and SELF-CONTROL.   (1 Timothy 1:7)