What is "kaiaphas"

Valério Costa, known by his stage names, Kaiaphas and Lord Kaiaphas, is a black metal vocalist, drummer, lyricist and songwriter. He is mostly known for his works while in the Norwegian black metal band Ancient. His current projects are Thokkian Vortex ( black metal) and Minimal Criminal ( psygressive trance). His name is taken after Caiaphas, the high priest during the Sanhedrin trial of Jesus.