Philippians 1:27

1:27 Only conduct yourselves in a manner worthy of the gospel of Christ so that – whether I come and see you or whether I remain absent – I should hear that you are standing firm in one spirit, with one mind, by contending side by side for the faith of the gospel,

Philippians 2:2

2:2 complete my joy and be of the same mind, by having the same love, being united in spirit, and having one purpose.