"You shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise. You shall bind them as a sign on your hand, and they shall be as frontlets between your eyes. You shall write them on the doorposts of your house and on your gates." Deuteronomy 6:7-9

What does it mean to "teach them diligently?"

Who is the LORD speaking to here?

Primary Discipler
parents, average time spent with kids: 3,000 hours/year
Secondary Discipler
Sunday morning teachers, average time spent with kids: 40 hours/year

Which Discipler do you think will have the greater impact?