Why is Joseph not mentioned in the Bible after the birth of Jesus?

Answer 1

Speaking of Jesus' earthly 'step'-father, though it is not specifically mentioned in The Bible, it is generally believed that Joseph died some time before Jesus did, since, at Jesus' death, he entrusted the care of his mother to the apostle John (John 19:26+27). He would not have had to do this if her husband were still around.

Another Answer

There are two Josephs and you need to keep them separate as they are not the same person. One is Joseph son of Heli of the House of David, who married Mary and the other is Joseph of Arimathaea, a wealthy tin merchant and uncle of Jesus.

Christ's flesh mother and siblings but not Joseph are mentioned in John 19:27 and Mark 6:3, it is therefore considered that Joseph had passed away at this point. Further Joseph, son of Heli did not show up to claim Chris't body after he was crucified, Joseph of Arimathaea did (his uncle). Don't get your Joseph's mixed up as the name is used quite often in biblical text. Get a copy of the companion bible by E W Bullinger, it will help you keep people, dates and times straight in your head.

Theres is a missing span of time from age 12 to age 30 for Jesus in the texts of the New Testament. There is ample evidence in many places that he traveled with his uncle Joseph of Arimathaea to the tin mines in Briton, and that he actually lived in Briton with his mother, during that time.

You will find this information well documented in two sources outside biblical text:

the Smiths bible dictionary = William Smith - Author

The Traditions of Glastonbury = E. Raymond Capt - Author

Answer 2

The bible does not go into a lot of detail about Jesus' childhood. Joseph is mentioned in Luke 2, when Jesus was 12 years old and was found teaching in the temple. When Jesus' actual ministry started, however, I think it is possible that since Joseph was likely a bit older than Mary that Joseph had already died by this point.