'Left' in the Bible

Therefore, when we couldn't stand it any longer, we thought it good to be left behind at Athens alone,

For this we tell you by the word of the Lord, that we who are alive, who are left to the coming of the Lord, will in no way precede those who have fallen asleep.

then we who are alive, who are left, will be caught up together with them in the clouds, to meet the Lord in the air. So we will be with the Lord forever.