Psalm 27:3: Though an host should encamp against me, my heart shall not fear though war should rise against me, in this will I be confident.
David was a king chosen by God and yet until the death of Saul, he had to be on the run for his dear life hiding in caves being guarded by his faithful men. In whatever he went through in his life, God was surely with him. He trusted God so much that he said even if a host should surround him, his heart would not fear. Even if a war were to come against him, he was confident in the God of Israel who was delivering him and would continue to do so.
How many of us can boldly say that even if a host of problems surround me, my heart will not fear. Can you say that your heart will be fearless when you are demoted? Can you say that your heart will be confident when your spouse walks away from you or when you lose your loved one to death or when creditors come knocking on your door? Can you say that you will be confident in the Lord when your children suddenly go disappearing or are abducted? What made David gain confidence in the Lord? Before he was anointed as king by Samuel, he was a shepherd. He used to praise God in the forest and worship him. God certified that he was a man after His own heart. He built a strong relationship with God before he was made a king. This is what triggered his confidence in the God of Israel.
How is your spiritual life? Spend more time with God. Gain confidence in God so that He also will trust you. Set him at the highest priority in your life so that you will defeat any host of problems or challenges that come your way.