Like a symphony, Scripture is a unified whole that contains multiple diverse themes that are developed and incased in the narratival canonical plotline.
The OT is the 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 advance this kingdom and judgment (defeat or exile) for the unfaithful, unto his glory.
The NT heightens and develops the OT score and storyline by giving us Jesus whose life, trials, death for sinners, and especially resurrection by the Spirit have launched the fulfillment of the eschatological already — not yet new — creational reign, bestowed by grace alone through faith alone and resulting in worldwide commission to the faithful to advance this new-creational reign and resulting in judgment for the unbelieving unto the triune God’s Glory.
Paraphrase of G.K. Beale
A NT Biblical Theology — pg. 16
Now the question for Dr. Beale would be, “Is the worldwide commission to the faithful to advance this new-creational reign a commission that is exhaustive and totalistic touching every area of life?”
It is hard to imagine a new-creational reign that is limited, muted or stunted in what it re-orders.