Gospel accounts
Nicodemus appears three times in the Gospel of John. He is first introduced as a Pharisee and ruler of the Jews who came to Jesus by night, an approach which tradition understands as a means of avoiding persecution by the Sanhedrin of which he was a member. In their conversation Jesus spoke of being born again of water and the Spirit; the synaxarion relates that the Savior taught him of spiritual rebirth through baptism, and that when Nicodemus was reproved for his lack of understanding he accepted the reproof with humility.
He appears a second time defending Jesus before the council, citing the principle that no one should be condemned without a hearing. His third appearance comes after the crucifixion, when he joined Joseph of Arimathea in the burial of Christ, contributing a costly quantity of spices. The commentary tradition has read the lavishness of this offering as befitting a royal burial.