To announce the arrival of Christ, the Lord, angels declared: “Glory to God in the highest, and on earth peace, good will toward men” (Luke 2:13-14).
Many believe that this declaration is one bringing the promise of “world peace”, however Jesus said that He did not come to “bring peace on earth”, but that He came to bring “a sword” (Matthew 10:34-39).
The ‘peace’ and ‘goodwill’ the angels referred to was in fact the good news of reconciliation between God and man that would be brought about by Jesus Christ’s sacrifice on the cross.
2 Corinthians 5:19
That God was in Christ reconciling the world to Himself, not imputing their trespasses to them, and has committed to us the word of reconciliation.
All past, present and future sin have been atoned for in Jesus Christ. The wrath and judgment of God, as evidenced in the Old Testament, has been satisfied. The divide between corrupt, sinful man and the perfect, omnipotent God has been reconciled by Jesus, the only Mediator (1 Timothy 2:5).
God therefore now no longer judges us. Jesus will be the Judge when He returns (2 Timothy 4:1). God is not angry at us at all and we do not have to live a life of constant self-recrimination. God loves us so much that He was willing to pay the ultimate sacrifice so that we can be in right standing with Him; so that we can be in relationship with Him despite our corrupt and sinful nature.
All we have to do is accept His free gift.