My husband died about 16 months ago at the age of 82. He had a twin sister who only lived two days. She was baptized. When his soul got to heaven, could he meet the soul of his twin sister? Would she still be a baby? At the time of the resurrection, will she be resurrected as a two-day-old baby? In answer to a similar question a number of years ago in a Bible class, the WELS pastor indicated the possibility of a baby who dies being in heaven as a healthy young adult and a person who dies at an advanced age being in heaven as in their prime of life years. Thank you.
Such a reunion that you asked about will certainly take place. 1 Thessalonians 4:13-18 describes the Lord gathering together those Christians who died and those Christians who are alive on the earth at the time of his visible return on the Last Day. When the Lord gathers together his Church, this truth remains: “And so we will be with the Lord forever” (1 Thessalonians 4:17).
The Bible does not address the subject of resurrected bodies of Christians as to their appearance in earthly age. The Bible does teach this: “The body that is sown is perishable, it is raised imperishable; it is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in power; it is sown a natural body, it is raised a spiritual body” (1 Corinthians 15:42-44). What was said in that Bible class is certainly possible with a God who can do all things.
While we may presently lack answers to some of our specific questions about heaven, the Bible gives us enough information that we can “encourage one another” (1 Thessalonians 4:18). And so, receive my encouragement to continue looking forward to the time when God’s people will enjoy a perfect and glorious life with God—forever.