'On that Day' in the Bible

“Go and speak to Ebed-melech the Ethiopian, saying, ‘Thus says the Lord of hosts, the God of Israel, “Behold, I am about to bring My words [of judgment] against this city through disaster and not for good; and they will take place before you on that day.

But I will protect you [Ebed-melech] on that day,” says the Lord, “and you will not be handed over to the men of whom you are afraid.

“Therefore her young men will fall in her streets,And all her soldiers will be destroyed on that day,” says the Lord.