Final judgement

The first reference to final judgement comes from Genesis 1:31

Ge 1:31 ¶ And God saw every thing that he had made, and, behold, [it was] very good. And the evening and the morning were the sixth day.

Genesis 1 is a table of contents to the rest of scripture. Each day points to a portion within the rest of the Bible. As such, Genesis 1 is a summary of the history of man (the Book of Life), and we find ourselves in day six where the man (Christ) is the express image of God, and his bride (the church) is being made to be 'like' him.

The final judgement is implied in God's declaration that it was 'very good'. Currently one might suggest that all things are not 'very good'. Between now, and the end of the sixth day, something must take place for God to declare that it is very good. That 'something' is the final judgement.