'On the Third Day' in the Bible

On the third day Eliab the son of Helon, leader of the children of Zebulun, did offer:

He shall purify himself with the water 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 himself, and wash his clothes, and bathe himself in water, and shall be clean at evening.

And on the third day eleven bullocks, two rams, fourteen lambs of the first year without blemish;

And you must abide outside the camp seven days: whosoever has killed any person, and whosoever has touched any slain, purify both yourselves and your captives on the third day, and on the seventh day.