I did a search on the exact phrase 'the Day of the Lord' and it speaks only of God's wrath...no parousia!
Isaiah 13:6 (NASB) Wail, for the day of the LORD is near! It will come as destruction from the Almighty.
Isaiah 13:9 (NASB) Behold, the day of the LORD is coming, Cruel, with fury and burning anger, To make the land a desolation; And He will exterminate its sinners from it.
Isaiah 58:13 (NASB) "If because of the sabbath, you turn your foot From doing your own pleasure on My holy day, And call the sabbath a delight, the holy day of the LORD honorable, And honor it, desisting from your own ways, From seeking your own pleasure And speaking your own word,
Lamentations 2:22 (NASB) You called as in the day of an appointed feast My terrors on every side; And there was no one who escaped or survived In the day of the LORD'S anger. Those whom I bore and reared, My enemy annihilated them.
Ezekiel 13:5 (NASB) "You have not gone up into the breaches, nor did you build the wall around the house of Israel to stand in the battle on the day of the LORD.
Ezekiel 30:3 (NASB) "For the day is near, Even the day of the LORD is near; It will be a day of clouds, A time of doom for the nations.
Joel 1:15 (NASB) Alas for the day! For the day of the LORD is near, And it will come as destruction from the Almighty.
Joel 2:1 (NASB) Blow a trumpet in Zion, And sound an alarm on My holy mountain! Let all the inhabitants of the land tremble, For the day of the LORD is coming; Surely it is near,
Joel 2:11 (NASB) The LORD utters His voice before His army; Surely His camp is very great, For strong is he who carries out His word. The day of the LORD is indeed great and very awesome, And who can endure it?
Joel 2:31 (NASB) "The sun will be turned into darkness And the moon into blood Before the great and awesome day of the LORD comes.
Joel 3:14 (NASB) Multitudes, multitudes in the valley of decision! For the day of the LORD is near in the valley of decision.
Amos 5:18 (NASB) Alas, you who are longing for the day of the LORD, For what purpose will the day of the LORD be to you? It will be darkness and not light;
Amos 5:20 (NASB) Will not the day of the LORD be darkness instead of light, Even gloom with no brightness in it?
Obadiah 15 (NASB) "For the day of the LORD draws near on all the nations. As you have done, it will be done to you. Your dealings will return on your own head.
Zephaniah 1:7 (NASB) Be silent before the Lord GOD! For the day of the LORD is near, For the LORD has prepared a sacrifice, He has consecrated His guests.
Zephaniah 1:8 (NASB) "Then it will come about on the day of the LORD'S sacrifice That I will punish the princes, the king's sons And all who clothe themselves with foreign garments.
Zephaniah 1:14 (NASB) Near is the great day of the LORD, Near and coming very quickly; Listen, the day of the LORD! In it the warrior cries out bitterly.
Zephaniah 1:18 (NASB) Neither their silver nor their gold Will be able to deliver them On the day of the LORD'S wrath; And all the earth will be devoured In the fire of His jealousy, For He will make a complete end, Indeed a terrifying one, Of all the inhabitants of the earth.
Zephaniah 2:2 (NASB) Before the decree takes effect-- The day passes like the chaff-- Before the burning anger of the LORD comes upon you, Before the day of the LORD'S anger comes upon you.
Zephaniah 2:3 (NASB) Seek the LORD, All you humble of the earth Who have carried out His ordinances; Seek righteousness, seek humility. Perhaps you will be hidden In the day of the LORD'S anger.
Malachi 4:5 (NASB) "Behold, I am going to send you Elijah the prophet before the coming of the great and terrible day of the LORD.
Acts 2:20 (NASB) 'THE SUN WILL BE TURNED INTO DARKNESS AND THE MOON INTO BLOOD, BEFORE THE GREAT AND GLORIOUS DAY OF THE LORD SHALL COME.
1 Corinthians 5:5 (NASB) I have decided to deliver such a one to Satan for the destruction of his flesh, so that his spirit may be saved in the day of the Lord Jesus.
1 Thessalonians 5:2 (NASB) For you yourselves know full well that the day of the Lord will come just like a thief in the night.
2 Thessalonians 2:2 (NASB) that you not be quickly shaken from your composure or be disturbed either by a spirit or a message or a letter as if from us, to the effect that the day of the Lord has come.
2 Peter 3:10 (NASB) But the day of the Lord will come like a thief, in which the heavens will pass away with a roar and the elements will be destroyed with intense heat, and the earth and its works will be burned up.
That isn't speaking of the Church or rapture, that is when God gathers those Jews who were scattered throughout the world back into the Land of Israel...
Jeremiah 23:3 (KJV) And I will gather the remnant of my flock out of all countries whither I have driven them, and will bring them again to their folds; and they shall be fruitful and increase.
Micah 2:12 (KJV) I will surely assemble, O Jacob, all of thee; I will surely gather the remnant of Israel; I will put them together as the sheep of Bozrah, as the flock in the midst of their fold: they shall make great noise by reason of the multitude of men.
That passage says 'is as' not 'is'. It is a simile and cannot be used as an equation.