"Let nothing be done through selfish ambition or conceit, but in lowliness of mind let each esteem others better than himself."
Do nothing from factional motives or strife. But with an attitude of humility, regard others as more important than yourselves. Do not be arrogant nor self-righteous. Don't do anything out of selfishness or empty conceit.
Don’t push your way to the front. Don’t sweet-talk your way to the top. Put yourself aside, and help others get ahead. Don’t be obsessed with getting your own advantage. Forget yourselves long enough to lend a helping hand.