David

David Copperfield. Dwight David Eisenhower. Michelangelo's David. None of these Davids would seem the same if their names were Dave. David, with its final "d", sounds finished and complete, whereas Dave just kind of hangs there in the air, indefinitely.

David the son of Jesse said, and the man who was raised up on high, the anointed of the God of Jacob, and the sweet psalmist of Israel, said, The Spirit of the LORD spake by me, and his word was in my tongue.