Genesis 39:20
<01004> [into the prison.]
{Baith hassohar,} "the round house," from the form of the building according to some; or, "the watch or guard house," from the Arabic {sahara,} to watch, according to others.
king's <04428> [the king's.]
Genesis 40:2-3
enraged <07107> [wroth.]
cupbearer .... baker <08248 08269> [the chief of the butlers.]
facility <04725> [the place.]
Joseph ... confined <03130 0631> [where Joseph was bound.]
Or, "where Joseph was confined," for he doubtless had his personal liberty. This place, we learn from the preceding chapter, (ver. 20,) was the king's prison. All the officers in the employment of the ancient kings of Egypt, according to Diodorus Siculus, were taken from the most illustrious families of the priesthood in the country; no slave or common person being ever permitted to serve in the presence of the king. As these persons were of the most noble families, it is natural to expect they would be put, when accused, into the state prison.
