Matthew 17:19

19ThenΤότεhaving comeπροσελθόντεςtheοἱdisciplesμαθηταὶτῷto JesusἸησοῦinκατ’privateἰδίανthey saidεἶπον·Because ofΔιὰwhyτίweἡμεῖςnotοὐκwere ableἠδυνήθημενto cast outἐκβαλεῖνitαὐτό;

Then the disciples, having come to Jesus in private, said, “Why were we not able to cast it out?”