The book of Hebrew says That it is recorded for man to die but once and then the judgement.
elijah
twice
twice
The Hebrew people were the first people to use the old testament.
The old testament is all what happened before the coming of Jesus, the new testament is after jesus came and died.
Isaac in the Old Testament was 180 years old when he died.
The biggest difference is in the Old Testament any christian was a christian because they new Jesus was coming and was going to die on the cross, in the New Testament they got to be with Jesus, they saw Him and most beleived. In the new testament till now we believe that Jesus died on the cross for our sins and that through Him we can go to heaven. So the main thing is people believed that Jesus died for their sins and for the Old Testament they believed He was coming.
The old and new testament are written by many different people.
In the old testament cannon is the holy land, which Joshua led the people to.
JESUS was the messiah that was promised in the old testament. He was the fulfillment of old testament prophecy.
Most likely God is mentioned in the Old Testament in what he said and did for His people.
Those that were raised from the dead at Christs death and the rest at His resurrection were all the Old Testament saints. They were raised from the dead, and taken up to be with the Lord in Heaven.