What does Jesus mean by a follower? The parable of the sower

• How does Jesus define the people who follow him, and is 'Christian' the right word for it?

A host poses the night's hard question: Jesus never says 'Christians are...' and even the Sermon on the Mount and the parable of the soils describe reactions to the kingdom rather than membership categories, so what does a follower of Jesus actually look like, and how did the word Christian drift from that? The hosts work it through: one argues the 'personal savior' crusade model is a modern fabrication and that if you are not a follower you are not following; another frames the barrier as humility, rightly recognizing who God is and who you are, noting the disciples themselves followed imperfectly and kept taking the next step; they agree it is not their job to declare who is in or out, but that love obligates saying something when a professed follower's life shows no fruit, contrasting the disciples' 'is it I?' at the Last Supper with Judas. They cite Robbie and Aaron's addiction-treatment ministry as the contrast case: broken people actively seeking change versus comfortable coworkers who see no need for God.