In Hebrew, the verb for learn becomes teach in its intensive form.
In Deuteronomy, when God is trying to get His people to learn the law, He tells them to teach it to their children.
In the gospel, when Jesus wants the disciples to get what it means for Him to have all authority in heaven and earth, He sends them out to teach everyone about it.
In other words, disciples are made by making disciples. That is: you will grow in Christ only as you are busy giving Christ, showing Christ, sharing Christ. You become what you give. You learn what you teach.
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