According to the overview, what is the atonement, and where in the Old Testament is this referred to in prophecy seven times?

Atonement is the reunion which occurs between God and humanity

Explanation:

Atonement is the reunion of two alienated or detached parties, in this context, The reunion is between God and humanity.

Atonement is provided and given by Jesus' self-offering on the cross of Calvary on behalf of humanity because Jesus Christ represents all humanity and offers to God a sacrifice that reconciles and reunite humanity and God.

Jesus bore the transgressions of the world on the cross, and the reconciliation and reuniting of humanity with God through the suffering and sacrificial death of Christ.

The New Testament also notions that “Christ died for our sins” (1 Corinthians 15:3) and that “we (Humanity) were reconciled to God .

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answer; ///attempts to change more than once behavior at the same time;