Paul is writing to the church at Philippi teaching them how they should behave. It’s good advice. I’ll paraphrase how I read this:
If you are getting anything worthwhile from being a Christian
You should love each other and work together.
Don’t always be focused on thinking about what is going to be good for you.
Don’t spend all your time on making a good impression on others.
Be humble, treating others as more important than yourself.
Be interested in other people and what they are doing.
Learn to have the same humble attitude as Jesus
Jesus was God but he did not demand and cling to his Godly rights.
He had the right to live in heaven and be worshipped.
Instead he chose to be humble
he was willing to be a human like us.
He was willing to be born in a cow shed
and be treated like a crazy man by his own family.
He was willing to be horribly executed even though he was innocent.
That is the attitude we should learn from.