Psalm 127

Unless the Lord builds the house, they labour in vain who build it; unless the Lord guards the city, the watchman stays awake in vain.
2 It is vain for you to rise up early, to sit up late, to eat the bread of sorrows; for so He gives His beloved sleep.
3 Behold, children are a heritage from the Lord, the fruit of the womb is a reward.
4 Like arrows in the hand of a warrior, so are the children of one’s youth.
5 Happy is the man who has his quiver full of them; they shall not be ashamed, but shall speak with their enemies in the gate.