This verb means to coat or plaster with lime (κονία), producing a white surface. Jesus uses it in Matthew 23:27 to denounce the scribes and Pharisees: 'You are like whitewashed tombs (τάφοις κεκονιαμένοις), which outwardly appear beautiful but within are full of dead people's bones.' In Acts 23:3, Paul angrily tells the high priest 'God is going to strike you, you whitewashed wall (τοῖχε κεκονιαμένε)!'—rebuking hypocritical judgment. Both uses are metaphorical, depicting a beautiful exterior hiding corruption or hypocrisy within. The perfect passive participle in both cases emphasizes the completed state of being whitewashed.