*** w10 8/15 pp. 6-7 Questions From Readers ***
The very first prophecy uttered after the original human couple rebelled spoke of Jehovah’s purpose to raise up a “seed” who would be bruised in the heel by Satan and his “seed.” (Gen. 3:15) This bruising occurred when Jesus was put to death by God’s enemies. (Gal. 3:13, 16) Christ’s shed blood serves as the ransom that frees mankind from sin and death. Since nothing can prevent Jehovah from accomplishing what he has purposed to do, as soon as the words recorded at Genesis 3:15 were spoken, the ransom was as good as paid from God’s viewpoint. He could now forgive those who exercised faith in his promises.
During pre-Christian times, Jehovah counted a number of individuals as righteous. Among them were Enoch, Noah, Abraham, Rahab, and Job. In faith, they looked forward to the fulfillment of God’s promises. “Abraham put faith in Jehovah,” wrote the disciple James, “and it was counted to him as righteousness.” Concerning Rahab, James said: “In the same manner was not also Rahab the harlot declared righteous by works?”—Jas. 2:21-25.
King David of ancient Israel committed several serious sins, but he had strong faith in the true God and manifested genuine repentance each time. Furthermore, the Scriptures state: “God set [Jesus] forth as an offering for propitiation through faith in his blood. This was in order to exhibit his own righteousness, because he was forgiving the sins that occurred in the past while God was exercising forbearance; so as to exhibit his own righteousness in this present season, that he might be righteous even when declaring righteous the man that has faith in Jesus.” (Rom. 3:25, 26) Based on the ransom sacrifice of Jesus that was to be provided in the future, Jehovah could pardon David’s transgressions without compromising His own requirements for justice.
Evidently, the situation of the woman who anointed Jesus’ feet was similar. She had lived an immoral life, but she had repented. She recognized her need for redemption from sin and showed by her actions that she truly appreciated the person through whom Jehovah provided that redemption. Though still future, that sacrifice was so certain that its value could already be applied to individuals like her. Hence, Jesus told her: “Your sins are forgiven.”
Then, the question is if Jesus sacrifice was considered realized in the past, why animal sacrifice was requested? That is the contradiction in my question.