Palagovski St.Paul came to Macedonia and preached to the Thessalonians in Thesaloniki not Solun.
He spoke to them in Greek. Macedonians were Christianized early 1st century AD.
The Slavs (Makedonski/Bulgars) were Christianized by Saints Cyril and Methodius in the 10th century AD.
One thousand years after the Macedonians (Greeks) of Macedonia.
These are the FACTS my friend and can not be changed.