'Letters' in the Bible
And desired of him letters to Damascus to the synagogues, that if he found any of this way, whether they were men or women, he might bring them bound unto Jerusalem.
And they wrote letters by them after this manner; The apostles and elders and brethren send greeting unto the brethren which are of the Gentiles in Antioch and Syria and Cilicia:
And when he had a desire to go over into Achaia, the brothers gave him help, and sent letters to the disciples requesting them to take him in among them: and when he had come, he gave much help to those who had faith through grace:
As also the high priest doth bear me witness, and all the estate of the elders: from whom also I received letters unto the brethren, and went to Damascus, to bring them which were there bound unto Jerusalem, for to be punished.