For you yourselves know well that the day of the Lord comes like a thief in the night.
The Day of the Lord -- Time of judgment and tributional. cf. Joel 1:15, Joel 2:1, Obadiah 1:15, Zephaniah 1:14, Isaiah 2:12, Isaiah 13:6, Ezekiel 13:5. [ 1 Corinthians 1:7-8 ]