This is so good! There are so many occurrences in scripture that can gauge the example of overcoming fear. The opposite of fear is faith because fear means that you don't believe that God can protect or give guidance but that He would just lead you to a dead end or just let things overwhelm you.
I know some people may ask then why did God allow these things to happen in my life? The answer is so simple but yet complex in it's execution.
ANSWER: God is always talking to us and leads us into His promises but sometimes in life we either dismiss His word or grow deaf to what He is saying and the fallen state of our world or the enemy can overtake us. Then we end up blaming God for what He was trying to help us to prevent.
Next question your asking: So then what about Job? He was righteous in all His ways and God allowed Satan to destroy His life!
ANSWER: Job was righteous but his mentality for his children created a door that was birthed by FEAR! Proof is in Job 3:25 - "What I feared has come upon me; what I dreaded has happened to me." Now we see that his own thoughts get the best of him before any of this starts to happen! God doesn't force us to do anything but He does what He can to lead us toward life. Fear gave Satan permission to access his life! In the beginning of the story you see that Job was sacrificing out of fear! Proof is in Job 1:5 - "When a period of feasting had run its course, Job would make arrangements for them to be purified. Early in the morning he would sacrifice a burnt offering for each of them, thinking, "Perhaps my children have sinned and cursed God in their hearts." This was Job's regular custom."
The moral of Job's lesson is not that God recklessly misuses our lives but that God always has the last word when we feel discouraged. He picks us up and grants us peace when we LISTEN. Living in fear of what is going to happen is just as detrimental as not allowing God's faith and love to fill us! 
Be blessed and encouraged!
Matthew 11:28 - "Come to me, all you who are weary and burdened, and I will give you rest."
RE: Are you tired and discouraged?