νυνὶ δὲ ἐν Χριστῷ Ἰησοῦ ὑμεῖς οἵ ποτε ὄντες μακρὰν ἐγενήθητε ἐγγὺς ἐν τῷ αἵματι τοῦ Χριστοῦ. But now in Christ Jesus you who formerly were far away have been made near in the blood of Christ.
Paul is still drawing his conclusion to the act of God’s saving grace from before verse 11. Previously he brought the former state of being in unbelief to the forefront, to which he now emphatically demonstrates the grace of God. While they used to be unbelievers, being without God, separate from Christ and alien to God’s people, God, by his grace, has in Christ Jesus brought those who were formerly far away to be near. Christ is where the unbelievers are brought near. It is in the sphere of Christ that the unbelievers are made near to God and to the people of Israel. But this act is done through Christ’s blood, which is the instrument that enacts it.
But now you, the ones who were formerly far away, were made near in Christ Jesus by the blood of Christ!
There has been a dramatic and emphatic change in unbelievers who have come to Christ through faith. They were once far away, but in Christ they are made near through his blood. In Christ believers have hope, and they have connection with God, Christ, and God’s chosen people.