Psalm 127

127 Unless Yahweh builds the house,
they who build it labor in vain.
Unless Yahweh watches over the city,
the watchman guards it in vain.
2 It is vain for you to rise up early,
to stay up late,
eating the bread of toil,
for he gives sleep to his loved ones.
3 Behold, children are a heritage of Yahweh.
The fruit of the womb is his reward.
4 As arrows in the hand of a mighty man,
so are the children of youth.
5 Happy is the man who has his quiver full of them.
They won’t be disappointed when they speak with their enemies in the gate.

https://www.biblegateway.com/passage/?search=Psalm%20127&version=WEB