For Jesus, to disciple someone was to teach that person how to live their life in the Kingdom of God. Remember, the Kingdom of God is God in action. So to say “Seek first the Kingdom of God” is to invite someone to be caught up in the action of God and the kind of righteousness that comes with that. That’s a major point that we have to hold on to: The basic idea of being a disciple, in the New Testament, is being with Jesus, learning to be like Him.