'Seventh Day' in the Bible

"'And if it fortune that any man, by chance, die suddenly before him and defile the head of his abstinence, then must he shave his head the day of his cleansing: even the seventh day he shall shave it.

The seventh day, Elishama, the son of Ammihud, the chief lord of the children of Ephraim, offered.

And he shall purify himself with the ashes the third day and then he shall be clean the seventh day. And 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 the third day and the seventh day. And the seventh day he shall purify himself and wash his clothes and bathe himself in water, and shall be clean at evening.

And the seventh day shall be a holy feast unto you, so that ye shall do no laborious work therein.

And the seventh day, seven bullocks, two rams and fourteen lambs that are yearlings and pure.

And wash your clothes the seventh day, and then ye are clean. And afterward come into the host."