Present - day elders must give similar warnings when necessary. As mature Christian men, they have experience in life.
فَهُمْ يَحْمُونَ إِخْوَتَهُمْ بِتَنْبِيهِهِمْ مِنْ أَيِّ شَخْصٍ قَدْ يُحَاوِلُ زَعْزَعَةَ إِيمَانِهِمْ .‏