'Kept' in the Bible

In the evening she went, and on the morrow she returned into the second house of the women, to the custody of Shaashgaz, the king's chamberlain, who kept the concubines: she came in unto the king no more, except the king delighted in her, and she were called by name.

In those days, while Mordecai was sitting in the king's gate, two of the king's chamberlains, Bigthan and Teresh, of those that kept the threshold, were wroth, and sought to lay hands on the king Ahasuerus.

And it was found written, that Mordecai had told of Bigthana and Teresh, two of the king's chamberlains, of those that kept the threshold, who had sought to lay hands on the king Ahasuerus.

and that these days should be remembered and kept throughout every generation, every family, every province, and every city; and that these days of Purim should not fail from among the Jews, nor the remembrance of them perish from their seed.