If we are to leave a legacy of faith we need to teach our children Biblical truths and set the example we teach. We must make our words matter. There is nothing more worthy that I could leave my child than a legacy of faith.
Only be careful, and watch yourselves closely so that you do not forget the things your eyes have seen or let them fade from your heart as long as you live. Teach them to your children and to their children after them. Deuteronomy 4:9 (NIV)