Train up a child in the way he should go: and when he is old, he will not depart from it.

Deuteronomy 5:9-10 

⁹ Thou shalt not bow down thyself unto them, nor serve them: for I the Lord thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me,

¹⁰ And shewing mercy unto thousands of them that love me and keep my commandments.

Deuteronomy 6:6-7

⁶ And these words, which I command thee this day, shall be in thine heart:

⁷ And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.

Proverbs 29:15

The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame.

Ephesians 6:4

And, ye fathers, provoke not your children to wrath: but bring them up in the nurture and admonition of the Lord.