The writer of Hebrews lists David along with Gideon, Samuel and the prophets as men of faith (Heb. 11:32)
But the secret of David's faith, if there is one, is that he viewed the giant not through the eyes of the Israelites who feared him, but through the Lord's eyes.
Goliath may have been a giant among men, but not compared to the man who stands with God. David's God was big enough to dwarf even the largest giant.
How big is your God?
Perfect Peace
Isa. 26:3-4