psalm 127:1-5. Unless the Lord builds the house,
the builders labor in vain.
Unless the Lord watches over the city,
the guards stand watch in vain.
2 In vain you rise early
and stay up late,
toiling for food to eat—
for he grants sleep to[a] those he loves.
3 Children are a heritage from the Lord,
offspring a reward from him.
4 Like arrows in the hands of a warrior
are children born in one’s youth.
5 Blessed is the man
whose quiver is full of them.
They will not be put to shame
when they contend with their opponents in court.
A godly child is one who is well trained by the parent in the way of the Lord from when he was born to earth.
source
Why is there need for parent to raise up Godly children?
To increase children who will be an army in the last days
It is the duty of the parent to so the children can give them rest when they grow.
you will be held responsible by God for the way you train your children
Because God seeks Godly offspring.
How to raise Godly children.
Train them with good education.
Prepare them for hardship in life and most importantly teach them to always talk to God in all they do.
Do not provoke the children to anger
Lead them to christ at an early stage
Be their role model, let them see Jesus attitude and character in you.
Try to meet their physical needs.
Give them enough attention and pray with them and for them often.
Always teach them the bible, start at an early stage.
What are the benefits of raising Godly children?
God will give you rest
Your children will give you rest
Parents are bringing honour to God which means God will honour them in return.
When the Godly children become adult, there is love and peace in the family.
They will represent you good everywhere they go, you would be proud of them.
Their success would make you ever happy.
At old age, you would eat the fruit of your labour happily and joyfully.
source
Prov 22:6. Start children off on the way they should go and even when they are old they will not turn from it.