'On that Day' in the Bible

on that day I swore to them to bring them out of the land of Egypt into a land that I had selected for them, [plentiful and] flowing with milk and honey, [a land] which is an ornament and a glory to all lands.

that on that day a survivor will come to you to let you hear [of the destruction of Jerusalem] with your [own] ears.

On that day the prince shall provide for himself and for all the people of the land a bull for a sin offering.