Thanks to Maggie for this reference.
The authors have a site for their book.
This site goes into some depth.
.Quote:
As we visited ancient sites, consulted with art historians, and read ancient texts, we stepped back, astonished at the weight of the reality: Jesus’s dead body was just not there. We could not find it in the catacombs or Rome’s early churches, in Istanbul’s great sixth-century cathedral Hagia Sophia, in the monastery churches in northeastern Turkey, or in Ravenna’s mosaics. And as we realized that the Crucifixion was absent, we began to pay attention to what was present in early Christian art
Quote:
Paradise, we realized, was the dominant image of early Christian sanctuaries. And to our surprise and delight, we discovered that early Christian paradise was something other than “heaven” or the afterlife. In the early church, paradise—first and foremost—was this world, permeated and blessed by the Spirit of God. Images of paradise in Rome and Ravenna captured the craggy, scruffy pastoral landscape, the orchards, the clear night skies, and teeming waters of the Mediterranean world, as if they were lit by a power from within. Sparkling mosaics in vivid colors captured the world’s luminosity. The images filled the walls of spaces in which liturgies fostered aesthetic, emotional, spiritual, and intellectual experiences of life in the present, in a world created as good and delightful.
Quote:
It shows how the Bible’s Hebrew prophets invoked the Garden of Eden to challenge the exploitation and carnage of empires. It shows how Jesus’s teachings and the practices of the early church affirmed life in this world as the place of salvation. Within their church communities, Christians in the first millennium sought to help life flourish in the face of imperial power, violence, and death.
Quote:
What led Western Christianity to replace resurrection and life with a Crucifixion-centered salvation and to relegate paradise to a distant afterlife? In short, the needs of empire—and theologies that justified and then sanctified violence and war—transformed Christianity and alienated Western Christians from a world they had once perceived as paradise.
Quote:
As soon as congregants entered ancient churches, they stood in a three-tiered sacred cosmos. A starry night sky or multihued clouds represented the first tier, the heavens, where celestial beings hovered; from this mysterious realm, the right hand of God emerged to bless the world. The second tier was an intermediary space over which the living Christ presided. The departed saints stood with him in the meadows of paradise and visited to bless the living. The third tier was the floor of the church where worshippers stood in God’s garden on earth.
There is much more in the article and of course, there's the book itself.
Thanks Maggie!