'Seventh Day' in the Bible

And if any man die very suddenly beside him, and he defile the head of his separation; then he shall shave his head in the day of his cleansing, on the seventh day shall he shave it.

On the seventh day Elishama the son of Ammihud, prince of the children of Ephraim:

the same shall purify himself therewith on the third day, and on the seventh day he shall be clean: but if he purify not himself the third day, then the seventh day he shall not be clean.

and the clean person shall sprinkle upon the unclean on the third day, and on the seventh day: and on the seventh day he shall purify him; and he shall wash his clothes, and bathe himself in water, and shall be clean at even.

And on the seventh day ye shall have a holy convocation: ye shall do no servile work.

And on the seventh day seven bullocks, two rams, fourteen he-lambs a year old without blemish;

And encamp ye without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify yourselves on the third day and on the seventh day, ye and your captives.

And ye shall wash your clothes on the seventh day, and ye shall be clean; and afterward ye shall come into the camp.