“Purpose” means that God has a plan concerning the outcome of creation. The ages were made by and for Jesus the Son of God, and they are unfolding according to the plan of God.
"God, having spoken long ago to our fathers in the prophets in many portions and in many ways, in these last days has spoken to us in His Son, whom He appointed heir of all things, and through whom He made the ages." (Hebrews 1:1-2)
The free will of humanity will not deter the purpose of God. God is the God of certainty and not of chance, and He made up His mind what He wanted to do and then created the ages to work out His plan.
At the close of the ages God will be "All in all" of His creation. He will be All in all of His creation.
"For as in Adam all die, so in Christ all will be made alive...When He has done this, then the Son Himself will be made subject to Him who put everything under Him, so that God may be All in all." (1 Corinthians 15:22-28)
In our troubled world I am glad God has a plan to save the world, and that His plan cannot be altered by the free will of mankind. That gives me "peace" in a world whose free will decisions are regularly bad and often changed.
"Peace I leave with you; my peace I give to you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid." (John 14:27)
At the close of the ages God will be "All in all" of His creation. He will be All in all of His creation.
"For as in Adam all die, so in Christ all will be made alive...When He has done this, then the Son Himself will be made subject to Him who put everything under Him, so that God may be All in all." (1 Corinthians 15:22-28)
In our troubled world I am glad God has a plan to save the world, and that His plan cannot be altered by the free will of mankind. That gives me "peace" in a world whose free will decisions are regularly bad and often changed.
"Peace I leave with you; my peace I give to you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid." (John 14:27)
Again, the purpose of the ages is for God to become All in all His creation. He becomes so by saving everyone and transforming them into the image of His Son, our Lord Jesus Christ.
"For those He foreknew He also predestined to be conformed to the image of His Son, so that He would be the firstborn among many brothers." (Romans 8:29)
"He worked in Christ, having raised Him out from the dead, and having set Him at His right hand in the heavenly realms, above every principality and authority and power and dominion, and every name being named, not only in this age, but also in the one coming. And He put all things under His feet and gave Him to be head over all things to the church, which is His body, the complement of the One completing the All in all." (Ephesians 1:20-23)