 Well, have you not read? We have some great Old Testament passages. The responsibility of parents to teach their children the word of God. Deuteronomy 6, 5-9. 2 Timothy 3, 14-17. Train up a child in the way he should go, so when he's old he will not depart from it. Proverbs 22, verse 6. Ephesians 6, 1-4.