You know....they have to convince the world that Aramaic was the preferred dialect in order to justify their silly notion that [Matthew 16:18] somehow gives them the right to dictate doctrine......on going.
From the scriptures you have provided this idea is completely debunked.
How silly. Jesus spoke Aramaic from the cross: ‘lama sabachthani’ is definitely Aramaic and some of the phrases in the Old Testament are precisely Aramaic. When Jesus spoke to the little girl who had died, He said ‘talitha, qumi’ which is Aramaic. It’s language not dogma.