"Mercy and truth have met together;
Righteousness and peace have kissed."
We see this fulfillment in the birth, death and resurrection of Christ, our Savior. Yes, it is the celebration of His birth, and with it the beginning of the fulfillment of this scripture. Righteousness represents the law which was never meant to be more than our "schoolmaster to bring us unto Christ," (Gal 3:2) but Peace is representative of the grace and mercy which Christ brings.
Imagine two separate worlds, one where we as sinners live, the other as Heaven where God abides. Now, Imagine the cross joining these two worlds with Christ's death and resurrection. Remember the Holy of Holies in the temple? Only a few, privileged priests were allowed into this sanctuary with the presence of God Himself. But, Christ bridged the gap, as we read in Mark 15:38, making a way for us to enter! The veil was torn asunder and the way was made for us to "cross over."
While we celebrate Christ's birth with all the beautiful lights, gifts and spectacular musical tributes, let's not forget the reason that Jesus came. He came to bring together sinners with the sinless King of Kings; He came so that righteousness and truth might come together in perfect harmony; He came so that the law might be fulfilled. The fulfillment of the law meant a perfect sacrifice must be made for sins. Christ fulfilled that righteous requirement perfectly when He bore sins' penalty on the cross. He also fulfilled the need for grace, peace and mercy. How desperately we need that! By paying for our sins, He has brought all of the grace, peace and mercy we need.
In John 1:14, 16-17, we read of this amazing phenomenon... "And the Word became flesh and dwelt among us, and we beheld His glory, the glory as of the only begotten of the Father, full of grace and truth…And of His fullness we have all received, and grace for grace. 17For the law was given through Moses, but grace and truth came through Jesus Christ."
No wonder the angels sang that night! No wonder the shepherds "came with haste" to the manger of the newborn king! No wonder we love Christmas! For indeed, righteousness and peace have come together...the gulf is gone!