Gospel of Nicodemus which internally was written before the death of Pilate 36 AD, and by Christian(s) which means if the internal date is real it is inspired scripture, and I believe it is inspired, has a part where Jesus says the same things as in the much debated longer ending of Mark 16 9-20
1 Now a certain priest named Phinees and Addas a teacher and Aggaeus (Ogias Copt., Egias lat.) a Levite came down from Galilee unto Jerusalem and told the rulers of the synagogue and the priests and the Levites, saying: We saw Jesus and his disciples sitting upon the mountain which is called Mamilch (Mambre or Malech lat., Mabrech Copt.), and he said unto his disciples: Go into all the world and preach unto every creature (the whole creation): he that believeth and is baptized shall be saved, but he that disbelieveth shall be condemned. [And these signs shall follow upon them that believe: in my name they shall cast out devils, they shall speak with new tongues, they shall take up serpents, and if they drink any deadly thing it shall not hurt them: they shall lay hands upon the sick and they shall recover.] And while Jesus yet spake unto his disciples we saw him taken up into heaven.
proving the longer ending of Mark is original.
1 Now a certain priest named Phinees and Addas a teacher and Aggaeus (Ogias Copt., Egias lat.) a Levite came down from Galilee unto Jerusalem and told the rulers of the synagogue and the priests and the Levites, saying: We saw Jesus and his disciples sitting upon the mountain which is called Mamilch (Mambre or Malech lat., Mabrech Copt.), and he said unto his disciples: Go into all the world and preach unto every creature (the whole creation): he that believeth and is baptized shall be saved, but he that disbelieveth shall be condemned. [And these signs shall follow upon them that believe: in my name they shall cast out devils, they shall speak with new tongues, they shall take up serpents, and if they drink any deadly thing it shall not hurt them: they shall lay hands upon the sick and they shall recover.] And while Jesus yet spake unto his disciples we saw him taken up into heaven.
proving the longer ending of Mark is original.