Psalms 127

1 Unless the Lord builds the house, those who build it labor in vain. Unless the Lord guards the city, the guard keeps watch in vain.

2 It is in vain that you rise up early and go late to rest, eating the bread of anxious toil; for he gives sleep to his beloved.

3 Sons are indeed a heritage from the Lord, the fruit of the womb a reward.

4 Like arrows in the hand of a warrior are the sons of one's youth.

5 Happy is the man who has his quiver full of them. He shall not be put to shame when he speaks with his enemies in the gate.

Note: The answers below try to mostly come direct from the Bible (New Revised Standard Version - NRSV).