Even today basic steps of spiritual growth and discipleship are shrouded in mystery for many Christians. This is because the genuine experience of becoming a disciple of Christ and in turn discipling others can be hard to explain even after we've successfully done it.
It's sobering when God tells a man "You'll either let My Word crush you or you will crush your children". He is always the same, His Word is mighty, and His ways work. We need to let Him have His way with us before we can have an impact on those around us.