Colin Gunton had a conversation with John Webster "about whether one can say that there is a single leading idea in scripture" and concluded that if there is then "life" has a claim to it (p.x, Colin Gunton, The Christian Faith).
On the flip-side to this, death could also make a claim. In our recent book discussion of Harry Potter we asked whether the real enemy of the series was Voldemort or Death. I thought it was Death! The prominence of life and death in fiction reflects its pervasive presence in reality, which is just what the Bible deals with.
The Bible certainly sees death as the "last enemy to be destroyed" (1 Cor 15:26), and it is there as a threat and then presence from Genesis 2:17 to Revelation 21:8. A novel begins a story in the midst of countless other stories, and ends when that story is over even though the overlapping stories continue. Similarly, other than a bit of scene setting the Bible starts with the appearance of death, and ends when death's story ends. This is despite the eternity of incredible stories on either end. But not only does it frame the narrative of the Bible it stands at the central turning point when the Son of God died our death to bring us life.
Neither death nor life are static realities, but life is creative and death brings things to an end. Both are rich in meaning if understood Biblicaly as deeply relational, in the first instance toward the Trinity (John 6:63; 17:3) but also the whole of Creation.
The Bible has a two-beat rhythm that is initially of life-to-death, but the increasingly dominant rhythm is of death-to-life.
Therefore, if I had to sum up the Bible in a sentence, as one glittering group of people were asked, I would be tempted by JI Packer's "adoption through propitiation" or James Hamilton's "salvation through judgment", but think I'd plump for life through death.
What do you think?