Why did Jesus still have wounds after the resurrection if He had a glorified body?

In John 20:27, after His resurrection, Jesus invites Thomas to touch the wounds in His hands and side. That detail has always struck me — if Jesus was raised in a glorified body, why were the wounds from His crucifixion still visible? Paul describes the resurrection body in 1 Corinthians 15 as imperishable and glorious, which makes me wonder: shouldn’t that mean it would be healed or perfected, without any remaining scars? I’m curious how Christians understand this. Is there a theological reason why Jesus kept the marks of His suffering? And what does that say about the nature of the resurrection body, or about His mission?