"He who did not spare His own Son, but delivered Him up for us all, how will He not also with Him freely give us all things?" Romans 8:32
"So then let no one boast in men. For all things belong to you . . . and you belong to Christ; and Christ belongs to God."
1 Corinthians 3:21, 23
We can own them or they can own us.
Everything belongs to God. Everything belongs to Christ. All things belong to us. That is what scripture says in 1 Corinthians.
So, what does that mean? If we went to our neighbor's house and helped ourselves to their stuff and then said, "Well, scripture says this belongs to me" they wouldn't agree.
So, the meaning has to be deeper.
It has to do with our attitude toward stuff and this world and God. We must hold onto things loosely and let them go willingly. We should be generous in all things knowing all things belong to God anyway. We need to be free with things and hold tight to those we love -- always putting God and people above material and tangible goods.