Reed Dearing, historiographer and senior docent of St. Johns Cathedral in Jacksonville Florida,
is in the process of writing a book on the stained glass windows in their church.
Here is an exceprt from his upcoming book, reproduced here with his permission:
Continuing to move west along the north wall of the nave is The Baptism Window. This window is a 1956
memorial donated by the Warriner family to Charles Friend Warriner (1855-1920) and Nathalie King
Warriner (1863 - 1951). In the predella is the shell symbol of a baptism accompanied with The Alpha &
Omega. The three center panels are a scene of John baptizing Jesus with people watching. Also viewed is
the descending dove of The Holy Spirit. The 2 panels on the left depict Christ learning in the temple
and working as a carpenter. The 2 panels on the right show the temptation of Satan and Christ teaching.
The predella in this scene shows the saints: St John with the poisoned chalice. Saint John the Evangelist
is depicted holding a chalice, an allusion to his being put to the test by the high priest of the Temple
of Diana at Ephesus.. The high priest said to him: "If you want me to believe in your god, I will give
you some poison to drink and, if it does not harm you, it means that your god is the true God." St James
the Less with a book, St Andrew with an X shaped cross, and St. Peter with the Keys to the Kingdom. St Matthew
with a Gospel, St. Philip with a book of teaching text and a shaft, and St. Bartholomew is shown with a
knife, symbolizing he was martyred by being skinned alive!
This window is one of the largest windows in the cathedral.
St. Johns Cathedral
 It is believed this is the only depiction of the Prince of Darkness in St John's Cathedral
 In aged art and stained glass, St John is many times depicted holding the poisoned cup