Psalm.
Chapter 127.
A song from Solomon for going up to the Temple. If it is not the LORD who builds a house, the builders are wasting their time. If it is not the LORD who watches over the city, the guards are wasting their time. 
It is a waste of time to get up early and stay up late, trying to make a living. The Lord provides for those he loves, even while they are sleeping. 
Children are a gift from the LORD, a reward from a mother’s womb. 
A young man’s sons are like the arrows in a soldier’s hand. 
The man who fills his quiver with sons will be very blessed. He will never be defeated when he opposes his enemy at the city gates.