'On the Third Day' in the Bible

and let them be ready for the third day; for on the third day Jehovah will come down before the eyes of all the people on mount Sinai.

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