Bk. II. Section 8.  Regarding the Temple Courts

... Now, then, all such as ever saw the construction of our temple, of what nature it was, know well enough how the purity of it was never to be profaned; for it had four several courts encompassed with cloisters round about, every one of which had by our law a peculiar degree of separation from the rest. Into the first court every body was allowed to go, even foreigners, and none but women, during their courses, were prohibited to pass through it; all the Jews went into the second court, as well as their wives, when they were free from all uncleanness; into the third court went in the Jewish men, when they were clean and purified; into the fourth went the priests, having on their sacerdotal garments; but for the most sacred place, none went in but the high priests, clothed in their peculiar garments. Now there is so great caution used about these offices of religion, that the priests are appointed to go into the temple but at certain hours; for in the morning, at the opening of the inner temple, those that are to officiate receive the sacrifices, as they do again at noon, till the doors are shut. Lastly, it is not so much as lawful to carry any vessel into the holy house; nor is there any thing therein, but the altar [of incense], the table [of shew-bread], the censer, and the candlestick, which are all written in the law; for there is nothing further there, nor are there any mysteries performed that may not be spoken of; nor is there any feasting within the place. For what I have now said is publicly known, and supported by the testimony of the whole people, and their operations are very manifest; for although there be four courses of the priests, and every one of them have above five thousand men in them, yet do they officiate on certain days only; and when those days are over, other priests succeed in the performance of their sacrifices, and assemble together at mid-day, and receive the keys of the temple, and the vessels by tale, without any thing relating to food or drink being carried into the temple; nay, we are not allowed to offer such things at the altar, excepting what is prepared for the sacrifices.