Psalm 127:3-5

3Behold, children are a heritage from the LORD,
   the fruit of the womb a reward. 4Like arrows in the hand of a warrior
   are the childrenOr sons of one's youth. 5Blessed is the man
   who fills his quiver with them!
He shall not be put to shame
   when he speaks with his enemies in the gate.Or They shall not be put to shame when they speak with their enemies in the gate