Children are Heritage of the LORD - Psalm 127

Psalm 127:1 Except the LORD build the house, they labour in vain that build  it: except the LORD keep the city, the watchman waketh but in  vain.

Psalm 127:2 It is vain for you to rise up early, to sit up late, to eat  the bread of sorrows: for so he giveth his beloved sleep.    

Psalm 127:3 Lo, children are an heritage of the LORD: and the fruit of  the womb is his reward.  

Psalm 127:4 As arrows are in the hand of a mighty man; so are children  of the youth.  

Psalm 127:5 Happy is the man that hath his quiver full of them: they  shall not be ashamed, but they shall speak with the enemies in  the gate. KJV