As I asked about Rev 3:10 a similar promised was made to king Josiah how was that fulfilled? Hint Rev 14:13 There are many Christians in heaven who have been redeemed by the blood of Jesus now and the tribulation hasn't taken place yet nor any rapture.Ref (with Jesus prior to the tribulation) Yet I still get the sense these elders are older than anyone born after Jesus came down to us. Example Moses, Abraham, Jacob, Joseph ,Enoch, Daniel any many more we don't even know about. That they would have been chosen by grace before they did good or bad like Paul . The seats given to those they would have been prepared for by grace. For only Jesus was found worthy of honor and power and glory.