The answer, in part, is that we celebrate because of all God accomplished through the cross of Christ. Here are a few of those accomplishments:
- Our penalty has been paid: For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God (2 Corinthians 5:21).
- Our sins have been forgiven: In him we have redemption through his blood, the forgiveness of our trespasses, according to the riches of his grace (Ephesians 1:7).
- Satan has been defeated: He disarmed the rulers and authorities and put them to open shame, by triumphing over them in him (Colossians 2:5).
- Death has been conquered: "O death, where is your victory? O death, where is your sting?" The sting of death is sin, and the power of sin is the law. But thanks be to God, who gives us the victory through our Lord Jesus Christ (1 Corinthians 15:55-57).
- We have been redeemed: For even the Son of Man came not to be served but to serve, and to give his life as a ransom for many (Mark 10:45).
- Our hearts are now reconciled to God: All this is from God, who through Christ reconciled us to himself...(2 Corinthians 5:18).
- We have been adopted as children of God: For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons...(Romans 8:15).
- We have the promise of eternal life: For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life. For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him (John 3:16-17).