'Third Day' in the Bible

On the third day [it was] Eliab the son of Helon, leader [of the tribe] of the sons of Zebulun [who presented his offering];

That one shall purify himself from uncleanness with the water [made with the ashes of the burned heifer] on the third day and on the seventh day, and then he will be clean; but if he does not purify himself on the third day and on the seventh day, he will not be clean.

Then the clean person shall sprinkle [the water for purification] on the unclean person on the third day and on the seventh day, and on the seventh day the unclean man shall purify himself, and wash his clothes and bathe himself in water, and shall be [ceremonially] clean at evening.

‘Then on the third day [of the Feast of Booths]: eleven bulls, two rams, fourteen male lambs one year old without blemish,

Camp outside the camp for seven days; whoever has killed any person and whoever has touched any dead body, purify yourselves and your captives, on the third day and on the seventh day.