The Lord is my light and my salvation—whom shall I fear?  The Lord is the stronghold of my life—of whom shall I be afraid?  When the wicked advance against me to devour me, it is my enemies and my foes who will stumble and fall.  Though an army besiege me, my heart will not fear; though war break out against me, even then I will be confident.  

Psalm 27:1-3  Whom Shall I Fear - Chris Tomlin https://www.youtube.com/watch?v=qOkImV2cJDg  

If you are humble enough to let Him lead your life, if He is your source of strength, then you can be confident, no matter what life throws at you.