he’s a liar because nobody can see or dream into the future. Jesus said I will come like a thief in the night. Case closed.
I believe you are referring to the text about "the day of the Lord." Sorry, Jesus did not say that, but we understand that that is the way he will come at what we call the rapture.
1 Thessalonians 5
Now, brothers and sisters, about times and dates we do not need to write to you, for you know very well that the day of the Lord will come like a thief in the night. While people are saying, “Peace and safety,” destruction will come on them suddenly, as labor pains on a pregnant woman, and they will not escape. ...