'On that Day' in the Bible

for on that day shall atonement be made for you, to cleanse you: from all your sins shall ye be clean before Jehovah.

On that day shall it be eaten: ye shall leave none of it until morning: I am Jehovah.

the priest shall reckon unto him the amount of thy valuation, unto the year of the jubilee; and he shall give thy valuation on that day, as holy to Jehovah.