'Union' in the Bible

From: Paul and Timothy, servants of the Messiah Jesus. To: All the holy ones in Philippi, along with their overseers and ministers, who are in union with the Messiah Jesus.

Then God's peace, which goes far beyond anything we can imagine, will guard your hearts and minds in union with the Messiah Jesus.

Greet every saint who is in union with the Messiah Jesus. The brothers who are with me send their greetings to you.