Wayne Grudem on What We Will do in Heaven

Dr. Grudem comments on why we have resurrected bodies in heaven. He asserts that we will continue to work in heaven. Music, art and technology will exist in heaven. We will have stuff that we enjoy doing in heaven because it will glorify God. This is from his Systematic Theology

While we may have some uncertainty about the understanding of certain details, it does not seem inconsistent with this picture to say that we will eat and drink in the new heavens and new earth, and carry on other physical activities as well. Music certainly is prominent in the descriptions of heaven in Revelation, and we might imagine that both musical and artistic activities would be done to the glory of God. Perhaps people will work at the whole range of investigation and development of the creation by technological, creative, and inventive means, thus exhibiting the full extent of their excellent creation in the image of God. Moreover, since God is infinite and we can never exhaust his greatness (Ps. 145:3), and since we are finite creatures who will never equal God’s knowledge or be omniscient, we may expect that for all eternity we will be able to go on learning more about God and about his relationship to his creation. In this way we will continue the process of learning that was begun in this life, in which a life “fully pleasing to him” is one that includes continually “increasing in the knowledge of God” (Col. 1:10). (Systematic Theology, p. 1162).