Psalm 27:3

Though an army encamps against me, my heart will not fear; though war arises against me, even in this I am confident.

When we get to the point when we know God and trust in Him completely, we will have fearless faith. Fearless faith has fought battles and won with God on their side and knows that there may be trials, but God will deliver them out of all. The confidence will come from the Lord, knowing nothing is too hard for God.