[Bayard]

For you truly know that the day of our Lord so comes as a thief in the night.

[Resettozero]

For you truly know that the day of our Lord so comes as a thief in the night.

Think that refers to That Great Day of The Lord, which I hope to avoid seeing from down here, when He appears (with His saints) to judge and avenge the blood of the righteous.

But you are still correct in saying that we all gotta die, or something like that, and few of us know approximately when that moment might be.