Which position claims that the millennium is a present age merging into a golden age of Christianity?

The position that claims the millennium is a present age merging into a golden age of Christianity is postmillennialism. This view anticipates that the current age will progress into a period of significant spiritual and societal improvement, culminating in a time when the kingdom of God is realized on earth. Postmillennialists believe that through the spread of the gospel, the world will become increasingly Christianized, leading to a long period of peace and righteousness before Christ's return.

This belief differs from premillennialism, which asserts that Christ will return before a literal millennium reign and that the world will actually decline morally and spiritually before His return. Amillennialism, on the other hand, interprets the millennium symbolically and does not expect a literal golden age on earth; it sees the kingdom of God as a present reality but not necessarily characterized by a future golden age. Dispensationalism includes beliefs about distinct ages or periods in God’s plan, emphasizing prophetic events leading to Christ’s return, but does not align with the idea of a present merging into a golden age of Christianity.

In essence, postmillennialism uniquely captures the notion of an ongoing transformation towards a golden age through Christian influence, which is why it is the correct answer.