1 Corinthians 12:13

12:13 For in one Spirit we were all baptized into one body. Whether Jews or Greeks or slaves or free, we were all made to drink of the one Spirit.

John 3:6

3:6 What is born of the flesh is flesh, and what is born of the Spirit is spirit.

John 17:21-23

17:21 that they will all be one, just as you, Father, are in me and I am in you. I pray that they will be in us, so that the world will believe that you sent me. 17:22 The glory you gave to me I have given to them, that they may be one just as we are one – 17:23 I in them and you in me – that they may be completely one, so that the world will know that you sent me, and you have loved them just as you have loved me.

Ephesians 4:3-4

4:3 making every effort to keep the unity of the Spirit in the bond of peace. 4:4 There is one body and one Spirit, just as you too were called to the one hope of your calling,

Ephesians 5:30

5:30 for we are members of his body.

Philippians 2:5

2:5 You should have the same attitude toward one another that Christ Jesus had,