"... Take to heart all these words I am giving as a warning to you today, so that you may command your children to carefully follow all the words of this law. For they are not meaningless words to you but they are your life..." (Deuteronomy 32:46-47 HCSB)
"He that spares his rod hates his son: but he that loves him chastens him betimes." (Proverbs 13:24 AKJV)
Loving discipline is a must. It takes time and consistency. Be a good parent.