“Lo, children are an heritage of the LORD: and the fruit of the womb is His reward. As arrows are in the hand of a mighty man; so are children of the youth. 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.” Psalm 127:3-5 (KJV)
The LORD has given to mankind the blessing of propagating itself. They are our children.
They are our heritage; our future; our life here on earth when brought up with the love of God and family in the life.
Children do bring us happiness from the time they are born to the time they leave home and go into the life of their own which we pray is a life in the Lord and serving Him.
We are blessed by children. They are not punishment. They are from the LORD our Creator.