According to the Lord's word, we tell you that we who are still alive, who are left till the coming of the Lord, will certainly not precede those who have fallen asleep.
NIV
For this we declare to you by the Lord's [own] word, that we who are alive and remain until the coming of the Lord shall in no way precede [into His presence] or have any advantage at all over those who have previously fallen asleep [in Him in death].
AMP
For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
KJV