'Seventh' in the Bible

but the seventh day is a Sabbath to Yahweh your God, in which you shall not do any work, you, nor your son, nor your daughter, nor your male servant, nor your female servant, nor your ox, nor your donkey, nor any of your livestock, nor your stranger who is within your gates; that your male servant and your female servant may rest as well as you.

Beware that there not be a base thought in your heart, saying, "The seventh year, the year of release, is at hand;" and your eye be evil against your poor brother, and you give him nothing; and he cry to Yahweh against you, and it be sin to you.

If your brother, a Hebrew man, or a Hebrew woman, is sold to you, and serves you six years; then in the seventh year you shall let him go free from you.

Six days you shall eat unleavened bread; and on the seventh day shall be a solemn assembly to Yahweh your God; you shall do no work [therein].