The Answer from God’s Word:
When Jesus came, He also did part of God’s work, and spoke some words—but what was the main work He accomplished? What He mainly accomplished was the work of crucifixion. He became the likeness of sinful flesh to complete the work of crucifixion and redeem all mankind, and it was for the sake of all mankind’s sin that He served as a sin offering. This is the main work He accomplished.
from “All Is Achieved by the Word of God”
Though man has been redeemed and forgiven of his sins, it is only considered as God not remembering the transgressions of man and not treating man in accordance with man’s transgressions. However, when man lives in the flesh and he has not been set free from sin, he can only continue to sin, endlessly revealing the corrupt satanic disposition. This is the life that man leads, an endless cycle of sin and forgiveness. The majority of men sin in the day only to confess in the evening. As such, even if the sin offering is forever effective for man, it would not be able to save man from sin. Only half the work of salvation has been completed….
from “The Mystery of the Incarnation (4)”