Eph. 2:10 ... "We are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them."
A Christian is the "workmanship of God" in a double sense. First, he is biologically the creation of God, for Gen 2:7 reports that "the Lord God formed man of dust from the ground, and breathed into his nostrils the breath of life; and man became a living being." Second, he is a special creation of God, for Eph. 4:24 states that "in the likeness of God [he] has been created in righteousness and holiness of the truth." Both of these acts are works of God that only God can do. The apostles of Jesus once asked Him, "Who can be saved?" His answer was, "With people it is impossible, but not with God; for all things are possible with God," (Mrk. 10:26-27). To be "saved" in the sense meant by these disciples is equivalent to being made a Christian. Therefore, the power required is not with human capacity, either with repect to the person himself or to another. It is the work of God alone!
A question that is both intriguing and very important is, "Why did God create man biologically and spiritually?" The answer to the biological purpose is given in Gen. 1:28. Just after God had created man, he commanded him to "be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea and over the birds of the sky and over every living thing that moves on the earth." (This, it may be noted, is the only command given by God that man has generally consistently obeyed.) The answer to the spiritual purpose is given in the lead text above: God creates a Christian "in Christ Jesus for good works." There is a type of work that only Christians can do to His satisfaction, so God creates Christians from people of the world to do that work. This work has been "prepared beforehand" by God; that is, He determined its nature and scope "before the foundation of the world," (Eph. 1:4). With His infinite foresight, God planned out the scheme of His eternal kingdom and its operation to the smallest details before He laid the foundation of the earth and brought forth man to inhabit it.