Once you have children, you really do begin to appreciate children's ministry and think (worry?)about how you are going to bring your children up in a way that pleases the Lord and shapes them in the things of God.
I know there are lots of course these days and books as well.
I thought the following posts were helpful.
Buzzard Blog has some very practical and very down to earth advice on modelling a love for God.
Desiring God has a load of resources - 16 web pages in all of audio and video.
Love this video clip from Piper: