I think it's very important to understand what are the communicable attributes of God and what are the incommunicable attributes of God. The communicable attributes of God are those attributes of God which are reflected in us who are made in his image and are restored progressively by God's work of grace through his saving work in our life. So that, for instance, God is holy in the sense of purity. Well, he made us holy, and though sin has marred us, when we come to Christ, he now begins to rebuild that as we pursue holiness, without which no man shall see the Lord. By his grace, for his glory, but we actually engage in the pursuit of holiness.

But now there are some attributes that are not communicated to us. The incommunicable attributes are those attributes that declare his uniqueness. There is none like him. And those that uniqueness of God is declared through his incommunicable attributes. No matter how much I am like Jesus, I will never be Jesus. No matter how much I can reflect God's glory, I will never be the full owner of God's glory. I have a measure of his glory. The only one who has the glory of God without measure, that is the outshining of all of his attributes, is Jesus: "And the Word became flesh and we beheld his glory, the glory of the only begotten from the Father, full of grace and truth."