Cross reference
1 Corinthians 6:17
17 But he who is joined to the Lord is one spirit.
John 17:21-23
21 that they may all be one; even as you, Father, are in me, and I in you, that they also may be one in us; that the world may believe that you sent me.
22 The glory which you have given me, I have given to them; that they may be one, even as we are one;
23 I in them, and you in me, that they may be perfected into one; that the world may know that you sent me, and loved them, even as you loved me.
1 Corinthians 12:13
13 For in one Spirit we were all baptized into one body, whether Jews or Greeks, whether bond or free; and were all given to drink into one Spirit.
John 3:6
6 That which is born of the flesh is flesh. That which is born of the Spirit is spirit.
Ephesians 4:3-4
3 being eager to keep the unity of the Spirit in the bond of peace.
4 There is one body, and one Spirit, even as you also were called in one hope of your calling;
Galatians 2:20
20 I have been crucified with Christ, and it is no longer I that live, but Christ living in me. That life which I now live in the flesh, I live by faith in the Son of God, who loved me, and gave himself up for me.
Ephesians 5:30
30 because we are members of his body, of his flesh and bones.
Philippians 2:5
5 Have this in your mind, which was also in Christ Jesus,