Greek

Why Greek?

 

"and it was written in Hebrew, and Greek, and Latin."-John 19:20(c-e) KJV

 

Greek was one of the main languages in Jesus' time,

 

Probably the most universal for its wisdom + script.

 

And as Pilate was able to write in all those languages,

 

I don't see the Apostles having a problem writing in Greek.