A billion years from now, what will you be doing? Does it matter? Can you know?
Yes, it matters, and, yes, you can know. The truth is, your recognition of the following facts and your response to them will determine your eternal destiny.
God's intention from the beginning was to prepare man for the coming of His Son. God began this preparation process with the first people. As a result of Adam and Eve's disobedience, they were overwhelmed with a sense of their guilt. While seeking to hide themselves from God, they attempted to make coverings from leaves. God came and confronted them regarding their sin and provided coverings for them made from animal skins.
The sacrifice of Christ was totally different from the sacrifices of the other high priests who offered sacrifices over and over, year after year. Jesus Christ, our High Priest, offered one sacrifice, Himself, that secured an eternal redemption so that the sacrifice is never again to be repeated:
