‘AT THAT TIME’ IDIOM FOR THE DAY OF THE LORD

Jeremiah 3:17 At that time they shall call Jerusalem the throne of the LORD; and all the nations shall be gathered unto it …

Daniel 12:1 And at that time shall Michael stand up, the great prince which stands for the children of your people: and there shall be a time of trouble such as never was since there was a nation even to that same time …

Zephaniah 3:20 At that time will I bring you again, even in the time that I gather you: for I will make you a name and a praise among all people of the earth, when I turn back your captivity before your eyes says the LORD.