Here's why:
* Historical Context: Aramaic was the common language of the region during the time of Jesus, especially among the common people. Hebrew was primarily used for religious purposes and in the temple.
* New Testament Evidence: While the New Testament was written in Greek, some Aramaic phrases and words are preserved within the text. These are often referred to as "Aramaicisms".
* Other Sources: Some early Church fathers and scholars also believed that Jesus spoke Aramaic.
* Lack of Contrary Evidence: There's no strong evidence suggesting Jesus spoke a different language.
However, it's important to note:
* We have no direct recordings of Jesus speaking. Our knowledge comes from inferences and the analysis of historical context.
* There were many dialects of Aramaic spoken at the time. It's difficult to pinpoint the exact dialect Jesus spoke.
* The use of Aramaic wasn't universally accepted. There were other languages spoken in the region, including Greek, Hebrew, and Latin.
Therefore, while it's highly likely Jesus spoke Aramaic, it's important to be cautious and avoid making definitive claims based on limited evidence.