Ezra 4:7

And in the time of Artaxerxes, Bishlam, Mithredath, Tabeel, and the rest of his friends, sent a letter to Artaxerxes, king of Persia, writing it in the Aramaean writing and language.

2 Kings 18:26

Then Eliakim, the son of Hilkiah, and Shebna and Joah said to the Rab-shakeh, Will you kindly make use of the Aramaean language in talking to your servants, for we are used to it, and do not make use of the Jews' language in the hearing of the people on the wall.

Daniel 2:4

Then the Chaldaeans said to the king in the Aramaean language, O King, have life for ever: give your servants an account of your dream, and we will make clear to you the sense of it.

Isaiah 36:11

Then Eliakim and Shebna and Joah said to the Rab-shakeh, Please make use of the Aramaean language in talking to your servants, for we are used to it, and do not make use of the Jews' language in the hearing of the people on the wall.

Ezra 4:9

The letter was sent by Rehum, the chief ruler, and Shimshai the scribe and their friends; the Dinaites and the Apharsathchites, the Tarpelites, the Apharsites, the Archevites, the Babylonians, the Shushanchites, the Dehaites, the Elamites,

Ezra 4:17

Then the king sent an answer to Rehum, the chief ruler, and Shimshai the scribe, and their friends living in Samaria, and to the rest of those across the river, saying, Peace to you:

Ezra 5:6

This is a copy of the letter which Tattenai, the ruler of the land across the river, and Shethar-bozenai and his friends the Apharsachites, living across the river, sent to Darius the king:

Treasury of Scripture Knowledge

Summary

And in the days of Artaxerxes wrote Bishlam, Mithredath, Tabeel, and the rest of their companions, unto Artaxerxes king of Persia; and the writing of the letter was written in the Syrian tongue, and interpreted in the Syrian tongue.

Bishlam

The syrian tongue

Bible References

Bishlam

Ezra 4:9
The letter was sent by Rehum, the chief ruler, and Shimshai the scribe and their friends; the Dinaites and the Apharsathchites, the Tarpelites, the Apharsites, the Archevites, the Babylonians, the Shushanchites, the Dehaites, the Elamites,
Ezra 5:6
This is a copy of the letter which Tattenai, the ruler of the land across the river, and Shethar-bozenai and his friends the Apharsachites, living across the river, sent to Darius the king:

The syrian tongue

Isaiah 36:11
Then Eliakim and Shebna and Joah said to the Rab-shakeh, Please make use of the Aramaean language in talking to your servants, for we are used to it, and do not make use of the Jews' language in the hearing of the people on the wall.
Daniel 2:4
Then the Chaldaeans said to the king in the Aramaean language, O King, have life for ever: give your servants an account of your dream, and we will make clear to you the sense of it.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain