'Away' in the Bible

Now, concerning those who from time to time pass away, we would not have you to be ignorant, brethren, lest you should mourn as others do who have no hope.

For if we believe that Jesus has died and risen again, we also believe that, through Jesus, God will bring with Him those who shall have passed away.

For this we declare to you on the Lord's own authority--that we who are alive and continue on earth until the Coming of the Lord, shall certainly not forestall those who shall have previously passed away.