'In that Day' in the Bible

Rejoice in that day and leap for joy. For behold, your reward is great in Heaven. For so their fathers did according to these things to the prophets.

But I say to you that it shall be more tolerable in that day for Sodom than for that city.

In that day he who shall be on the housetop, and his goods in the house, let him not come down to take them away. And likewise, he who is in the field, let him not return to the things behind.