John 1:51; John 5:4; John 12:29; John 20:12

John 1:51

51 And he saith unto him,Verily, verily, I say unto you, Hereafter ye shall see heaven open, and the angels of God ascending and descending upon the Son of man.

John 5:4

4 For an angel went down at a certain season into the pool, and troubled the water: whosoever then first after the troubling of the water stepped in was made whole of whatsoever disease he had.

John 12:29

29 The people therefore, that stood by, and heard it, said that it thundered: others said, An angel spake to him.

John 20:12

12 And seeth two angels in white sitting, the one at the head, and the other at the feet, where the body of Jesus had lain.