Both the old and new testaments contain prophecies about the nation of Israel and major world events (e.g. Daniel 2:31-45). Many of these prophecies have already been fulfilled and give us confidence that God is in control and future predictions will also become a reality.
The nation of Israel are called God’s witness in scripture due to the numerous prophecies which have been fulfilled in the history of this people. (Isaiah 43:1,10)
The second coming of Christ is also a key subject of prophecy in the Bible, being the focus of God’s purpose, the time when His kingdom will be setup on earth. (Acts 1:6-11, Luke 21:25-28, Revelation 11:15)