'Letter' in the Bible

With them they sent the following letter: “The apostles and the brothers who are the elders, to the brothers and sisters who are from the Gentiles in Antioch, Syria, and Cilicia, Greetings.

So when they were sent off, they went down to Antioch; and after assembling the congregation, they delivered the letter.

But with regard to the Gentiles who have believed [in Christ], we have sent them a letter with our decision that they should abstain from meat sacrificed to idols and from [consuming] blood and from [the meat of] what has been strangled and from sexual immorality.”

And [after instructing the centurions] he wrote a letter to this effect:

When these [horsemen] reached Caesarea, they delivered the letter to the governor, and also presented Paul to him.

After reading the letter, he asked which province Paul was from, and when he learned that he was from Cilicia [an imperial province],