Hebrews 10

11 The Law of Moses required that the priests offer sacrifices almost continually for the sins of the nation. These sacrifices could only atone, or cover, sins -- they could not change people's sinful nature.
12 Jesus only had to offer one sacrifice. His death on the cross was a perfect sacrifice. It is the total repayment for the sin for those who believe in Jesus. This belief also means that the Holy Spirit indwells the believer to begin a change of character from sinful to good.
13 When Jesus was raised from the dead, He was given the highest position in heaven. He now waits until the appointed time when He is to return and destroy all sin in the world.
14 It should be obvious that there are no perfect Christians. Thus, there must be some other way to understand this "perfection." Since Jesus' sacrifice was perfect and the believer is redeemed by it, then we might "appear" perfect to God.

People were designed to have a relationship with God, but the relationship was broken by sin. This relationship is reestablished in the believer, and will be perfected in heaven.

15 This is not an after thought or a new idea. God had predicted it.
16 When the Holy Spirit indwells the believer, He is constantly reminding him how God expects him to behave.
17 Jesus' perfect sacrifice "erases" our sins from the record books. Since God is omniscient, this verse may mean that God no longer holds past sins against Christians. However, it may be in God's power to forget these sins deliberately, and it will then be as if they never happened.
18 Since the believer's sins are forgiven, there is no need for the believer to continue to offer sacrifices as prescribed by the Law of Moses. In fact, it might be considered an insult to God to offer an animal sacrifice after He gave His Son to offer the perfect sacrifice on our behalf.
19 Christians can go to God confidently in prayer and in heaven. We do not need to worry that "something" was missed. Neither do our past nor current imperfections disqualify us from His love.
20 We can approach God because Jesus paid for our sins with His blood and flesh. Since Jesus is alive again, we approach, not with morbid anxiety, but with revitalized hope.
21 Jesus is the High Priest, appointed by God, for all people.
22 When Jesus takes away our sins because of our faith, we no longer have to live with a guilty conscious about our past. Our bodies are cleansed, but they will still have to die because of contamination by sin.
23 God has promised us perfect redemption through Jesus, so we need not worry about whether we are doing the right thing.
24 Faith and relationship are between not only individuals and God, but involve the whole Christian community. We should encourage each other to live good and faithful lives.
25 Christians must meet together to encourage or rebuke as necessary. We often have problems seeing the "trouble spots" in our lives. Sometimes we need someone else's perspective and experience to help us overcome a sin. The Holy Spirit can teach us through our hearts, but God also works through other people.