Dr. John Piper writes from his book titled above:
“The Father has eternally enjoyed ‘the radiance of His glory and the exact representation of His nature’ (Heb. 1:3) in the Person of his Son. Seeing and savoring this glory is the goal of our salvation. ‘Father, I desire that they also, whom You have given Me, be with Me where I am, so that they may see My glory which You have given Me’ (John 17:24). To feast on this forever is the aim of our being created and our being redeemed.”
As we have been studying on Sunday nights God's highest priority throughout the entire Scriptures is His glory!