There Could Be No Redemption for Mankind Save it Were Through the Death and Suffering of Christ and the Atonement of His Blood

Aaron, a Nephite missionary, teaches that…

“…There could be no redemption for mankind save it were through the death and suffering of Christ, and the atonement of his blood.” (Alma 21:9)

Questions:

-Does God redeem His children (mankind) outside of the demands of justice?

-Was there any other way to satisfy the demands of justice, while still showing mercy, without God providing an atoning Savior?

Teachings of Latter-day Prophets, Seers, and Revelators:

“Christ’s agony in the garden is unfathomable by the finite mind, both as to intensity and cause. … He struggled and groaned under a burden such as no other being who has lived on earth might even conceive as possible. It was not physical pain, nor mental anguish alone, that caused Him to suffer such torture as to produce an extrusion of blood from every pore; but a spiritual agony of soul such as only God was capable of experiencing. No other man, however great his powers of physical or mental endurance, could have suffered so” (James E. Talmage, Jesus the Christ, 3rd ed. [1916], 613).