If the LORD had not been on our side—let Israel say-  if the LORD had not been on our side when men attacked us, when their anger flared against us, they would have swallowed us alive; the flood would have engulfed us,the torrent would have swept over us, the raging waters would have swept us away. Praise be to the LORD, who has not let us be torn by their teeth.

Unless the LORD builds the house, its builders labor in vain. Unless the LORD watches over the city, the watchmen stand guard in vain.

 Nothing can be accomplished without God. You can't build a house without God. you really can't do anything without him. The people of Israel would of died under the Egyptians if God hadn't opened  the red sea. They would've died in the desert if God hadn't given them water. There's a thousand ways that they, or we, would've died if God hadn't been watching out for us. But we have a God that can kill 185,000 Assyrian men over night! I feel protected!