'Closet' in the Bible

When Ehud departed, Eglon’s servants came. And when they saw that the doors of the upper room were locked, they said, “He is only relieving himself in the cool room.”

Gather the people, sanctify the congregation,Assemble the elders,Gather the children and the nursing infants.Let the bridegroom come out of his roomAnd the bride out of her bridal chamber. [No one is excused from the assembly.]