Hebrews 11:39-40 ESV
And all these, though commended through their faith, did not receive what was promised, since God had provided something better for us, that apart from us they should not be made perfect.
God tells us to be perfect as He is perfect. (Mat 5:48). How is this possible?
We are led by the Spirit and we are in the body of Christ. That is why we call Him the head of the Church. This is the mind of Christ given to us all.
We have the mind of Christ and the perfection of being in His body.