No one has yet received 'glorification', as you imagine. Not Adam, Abraham, not Billy Graham.
The Bible is quite clear about when all the worthy people will receive immortal life; AFTER the Millennium. Rev 20:11-15
No one receives immortal life after the Mill. Immortality comes before the Mill at the second coming according to scripture:
Luk 20:35 But they which shall be accounted worthy to obtain that world, and
the resurrection from the dead, neither marry, nor are given in marriage:
Luk 20:36
Neither can they die any more: for they are equal unto the angels; and are the children of God, being the children of the resurrection.
Here we see that those who are resurrected cannot die anymore which is what having eternal life means. So we only have to find out when the resurrection happens.
1Th 4:16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God:
(the second coming) and the dead in Christ shall rise first:
(the resurrection of the dead in Christ)
1Th 4:17 Then we which are alive and remain shall be
caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
(the rapture)
Paul lists the events in order: The second coming, then the resurrection (
when people become immortal and cannot die anymore), then the rapture. The second coming happens before the thousand years begins according to Rev 20:
Rev 20:4 And I saw thrones, and they sat upon them, and
judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and
they lived and reigned with Christ a thousand years.
Rev 20:5 But the rest of the dead lived not again until the thousand years were finished.
This is the first resurrection.
Rev 20:6 Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
Take note that a judgment happened before the thousand years began. The ones who are resurrected were also judged. This is when they receive eternal life. So, eternal life begins before the Millennium begins
which is also why people live more than a 1,000 years :)