Reference

Ezekiel 7:12

The time is come, the day draweth near: let not the buyer rejoice, nor the seller mourn: for wrath is upon all the multitude thereof.
10

Behold the day, behold, it is come: the morning is gone forth; the rod hath blossomed, pride hath budded.

11

Violence is risen up into a rod of wickedness: none of them shall remain, nor of their multitude, nor of any of theirs: neither shall there be wailing for them.

12

The time is come, the day draweth near: let not the buyer rejoice, nor the seller mourn: for wrath is upon all the multitude thereof.

13

For the seller shall not return to that which is sold, although they were yet alive: for the vision is touching the whole multitude thereof, which shall not return; neither shall any strengthen himself in the iniquity of his life.

14

They have blown the trumpet, even to make all ready; but none goeth to the battle: for my wrath is upon all the multitude thereof.

Counter-Arguments

The strongest case that this verse does not belong in this theme.

The Lords Day

The verse speaks of a general "day" that is drawing near, referring to a time of wrath and judgment, not specifically a day of worship or a distinct "Lord's Day" as defined by the theme.