My wife and I are currently reading through Tedd Tripp's Shepherding a Child's Heart together. Here are a couple of choice gems from chapter six:
If you faithfully hold out God’s standard, you are keeping before [your children] the Law of God that is a schoolmaster to take them to Christ.
Teaching your children to live for the glory of God must be your overarching objective. You must teach your children that for them, as for all of mankind, life is found in knowing and serving the true and living God. The only worthy goal for life is to glorify God and enjoy him forever.