Luke 17:30-31 NIV
30 “It will be just like this on the day the Son of Man is revealed. 31 On that day no one who is on the housetop, with possessions inside, should go down to get them. Likewise, no one in the field should go back for anything.
In two similar narratives in Mark and Matthew it seems these warnings were referring to the impending destruction of Jerusalem rather than the coming of Christ.
Matthew 24:15 18 NIV
15 “Therefore when you see the abomination of desolation which was spoken of through Daniel the prophet, standing in the holy place (let the reader understand), 16 then those who are in Judea must flee to the mountains. 17 [h]Whoever is on the housetop must not go down to get the things out that are in his house. 18 [i]Whoever is in the field must not turn back to get his cloak
Mark 13:14-16 NIV
14 “When you see ‘the abomination that causes desolation’[a] standing where it[b] does not belong—let the reader understand—then let those who are in Judea flee to the mountains. 15 Let no one on the housetop go down or enter the house to take anything out. 16 Let no one in the field go back to get their cloak.
How then does Luke say these warnings were referring to the coming of the Lord?