Let nothing be done through selfish ambition or conceit, but in lowliness of mind let each esteem others better than himself. Let each of you look out not only for your own interests, but also for the interest of others. Let this mind be in you which was also in Christ Jesus.
Philippians 2:1-5
... Walk worthy of the calling with which you were called, with all lowliness and gentleness, with longsuffering, bearing with one another in love, endeavoring to keep the unity of the Spirit in the bond of peace.
Ephesians 4:1-3