The Woman at the Well
Church of Sant'Apollinare Nuovo, Ravenna
This is one of the 13 mosaics along the upper band of the left wall of the nave that follow the life of Christ. He usually blesses a person as here, with the fingers of his right hand held in the "Old Believers" configuration.
The episode is narrated in John 4:4-29. Jesus promises "living water" to the Samaritan woman, who then goes into the village with the news of this man. "Could he be the Messiah?"
See also a view of the entire left wall with commentary on the iconography of Jesus and the apostles in these mosaics.
This image in full resolution
More of the Miracles of Jesus
Photographed at the church by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.