'Castle' in the Bible

and some were crying out one thing, and some another, among the multitude, and not being able to know the certainty because of the tumult, he commanded him to be carried to the castle,

And Paul being about to be led into the castle, saith to the chief captain, 'Is it permitted to me to say anything unto thee?' and he said, 'Greek dost thou know?

the chief captain commanded him to be brought into the castle, saying, 'By scourges let him be examined;' that he might know for what cause they were crying so against him.

and a great dissension having come, the chief captain having been afraid lest Paul may be pulled to pieces by them, commanded the soldiery, having gone down, to take him by force out of the midst of them, and to bring him to the castle.

And the son of Paul's sister having heard of the lying in wait, having gone and entered into the castle, told Paul,

and on the morrow, having suffered the horsemen to go on with him, they returned to the castle;