Ephesians 2:14“For he himself is our peace, who has made the two groups one and has destroyed the barrier, the dividing wall of hostility, 15by setting aside in his flesh the law with its commands and regulations. His purpose was to create in himself one new humanity out of the two, thus making peace, 16and in one body to reconcile both of them to God through the cross, by which he put to death their hostility....”
“17He came and preached peace to you who were far away and peace to those who were near. 18For through him we both have access to the Father by one Spirit.
“19Consequently, you are no longer foreigners and strangers, but fellow citizens with God’s people and also members of his household, 20built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone. 21In him the whole building is joined together and rises to become a holy temple in the Lord. 22And in him you too are being built together to become a dwelling in which God lives by his Spirit.”
Pay attention to verse 15 especially and get with it and let the Lion of the tribe of Judah lick you with the tongue of his grace!
All of the above is more fully covered by Jeremiah and Ezekiel.