The books that Luther stripped from the Bible, Books and Scripture that were present, in the Jewish Temples, at the time of Jesus, the Books of Maccabees, clearly did support the practice of praying for the dead, as well as the practice of asking the dead to pray for the living.
What has the Apocrypha to do with glorifying God or Jesus? When the Bible was put together it incorporated just those books. Why pray for the dead? One verse from Maccabees about praying for the dead gave the Roman Catholic Church Purgatory. Why bother to repent of our sins in this life and have Purgatory to endure in the next? Did Jesus save us? Has baptism saved us? If not then what was Jesus’ sacrifice for us worth? He died in vain if we have to endure this Purgatory. And if we were to pray for those in Purgatory, how much more are our prayers worth than those in torment? We’d wind up there too.