Can You Summarize the Entire Storyline of the Bible in a Single Sentence?

No problem, says G.K. Beale, the J. Gresham Machen Chair of New Testament and professor of New Testament and biblical theology at Westminster Theological Seminary:

The OT storyline appears best to be summarized as:

the historical story of God

who progressively reestablishes his new creational kingdom

out of chaos

over a sinful people

by his word and Spirit

through

promise,
covenant, and
redemption,

resulting in worldwide commission to the faithful to extend that new creation rule and

resulting in judgment for the unfaithful (defeat and exile),

all of which issues into his glory;

the NT storyline can be summarized as:

Jesus’ life of covenantal

obedience,
trials,
judgmental death for sinners, and
especially resurrection by the Spirit

has launched the fulfillment of the eschatological already-and-not-yet promised new creation reign,

bestowed by grace through faith and

resulting in worldwide commission to the faithful to extend this new creation rule and

resulting in judgment for the unfaithful,

unto God’s glory.

For other (shorter!) attempts, go here.