On the north jamb of the west door of the narthex, apotropaic crosses with a waived crown of thorns and cryptograms are represented.
The cross is in brown colour and the letters in black. Both are painted in a white background.
Cross as a pattern has a prophylactic function against evil powers. Thus its presence on the doorway seems legit.
Regarding the cryptograms written on the jambs of the narthex, praise the sacrifice of Christ on the cross, his mercy, attest the faith of the martyrs and underline the eschatological and salvific meaning of the cross .