As someone who is moving toward specializing in religious studies, I started to read the Bible. I think that any Muslim scholar living in this age needs to know the bible.
I came a cross some concepts that I wish to be explained to me further.
1. I read somethings like " the kingdom of Jesus is to come". So what is exactly meant by this? Does it refer to the coming ages that will start with the return of Jesus.
I commend you for looking into the bible yourself, that is the best way to form an opinion on it.
Jesus was Gods Messiah. the Messiah was promised to come and establish rulership over all the earth and mankind. Genesis 22:17
...and your seed (Messiah/Christ) will take possession of the gate of his enemies. 18 And by means of your seed all nations of the earth will certainly bless themselves due to the fact that you have (Abraham) listened to my voice.’
The hebrew scriptures were written long before the messiah arrived, when he did arrive, he fulfilled his initial obligations, but more was to come.
Jesus himself stated that before he took rulership, some things had to first occur. So when the apostles of Jesus wrote the message of the christian greek scriptures, they spoke of things that would occur in the future including that Christs Kingdom would 'come'
Christians differ on the meaning of the kingdom. Some think it will be on earth, others think it will be in heaven....some think it has already begun ruling. If you would like a deeper study on these details, let me know and i'll pm you.
2. What do the concept of the "first and the second resurection" mean? Do they involve some dead who will be brought back to life.
in the accounts in the bible (hebrew and greek scriptures) those who were resurrected were brought back to life in the flesh.
Resurrections were performed by or through the prophets Elijah and Elisha. (1Ki 17:17-24; 2Ki 4:32-37; 13:20, 21) And Jesus performed a few resurrections, one was of his friend lazarus you can read about in John 11:38-44. These are 'earthly resurrections'...the people were raised to life in the flesh.
But when Jesus was resurrected, it was in the 'spirit' 1Peter 3:18...
he (Jesus) being put to death in the flesh, but being made alive in the spirit
So there are two types of resurrection. One is in the flesh and the other is in the spirit. Jesus was the first man EVER to be resurrected as a spirit. Its called in the greek scriptures a 'heavenly resurrection' because these ones are raised to heavenly life, they are spirits like the angels and God and thus they can live with God in heaven.