If you do not experience discipline like everyone else, then you are illegitimate children and not true sons.
Εἰ δὲ χωρίς ἐστε παιδείας, ἧς μέτοχοι γεγόνασι πάντες, ἄρα νόθοι ἐστὲ καὶ οὐχ υἱοί.