I believe that we will be 33 years old in heaven forever.  This is based upon my interpretation of Scripture.

The Bible says, “And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.” ( I Cor. 15:45)  Who is the last Adam?  “The first man is of the earth, earthly: the second man is the Lord from heaven.”  (1 Cor. 15:47)  We now look like the first man (Adam), but we will have a glorified body like that of Jesus after He was raised from the dead.  “And as we have borne the image of the earthy, we shall also bear the image of the heavenly.”  (1 Cor. 15:49)

Jesus was 33 years old when He was raised from the dead and received His glorified body.  The Bible says, “Who shall change our vile body, that it may be fashioned like unto his glorious body . . .”  (Philippians 3:21)  The Bible also says, “Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.”  (I John 3:2)

Some parents that have lost a baby want to see their baby in heaven as an infant.  There is no aging in heaven.  It is the land where we never grow old.  That precious baby would have to remain a toddler for all eternity and  never be able to praise God with maturity.  While I think all babies that die go to heaven; I also think they will be 33 years old.

We would not want a family member that died at 90 with a broken crippled body to be that age and in that condition in heaven.  I think they will be 33 years old.

I look forward to the time when my body will be like that of our Lord Jesus Christ after He was raised from the dead.