Salvete,
If there is no “j” in Latin then how would you say “Jesus”? Sorry if this is common knowledge.
thanks
Salve, Decci!
The Romans only had an “I”: it covered both the sound of I and J.
The Romans would spell: IESUS. They didn’t have miniscules 
They would decline IESUS with a mixture of Greek and Latin grammar:
N: Iesus
V: Iesu
A: Iesum
G: Iesu
D: Iesu
A: Iesu
Hope this helps.
Pax tecum.
The I was certainly not pronounced as an English “J”, I as a consonant was pronounced as a “Y”.
Since we’re on the pronounciation of Iesus, don’t forget to keep the U long! (Yay - zoos)
Thanks everyone this has cleared things up
(Yay - zoos)
They surely didn’t have the Z sound, did they?
I would pronounce all the S’s softly (as in the word “soft”), but the pronunciation of the vulgus was obviously different from the pronunciation we are taught.
But Church Latin tends to be pronounced pretty close to Italian, which does have a “voiced-s” between vowels. Hence most churchmen would pronounce it as a Z.
(“Stupid. In Latin, Jehovah is spelled with an I.” – Indiana Jones)