'Third Day' in the Bible

and be ready against the third day; for the third day Jehovah will come down in the sight of all the people upon mount Sinai.

And he said unto the people, Be ready against the third day: come not near a woman.

And it came to pass on the third day, when it was morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of a trumpet exceeding loud; and all the people that were in the camp trembled.