What is it about trees? These creatures, so vital to our survival, have followed human beings since we first sprung from this earth. The Gospel of Trees is an essay about a wooded landscape where all sorts of limbs move around, a landscape that is at once well-known and wondrous. Church historian Thomas Arentzen wanders through forests, reads poetry, climbs trees, explores leaves of scripture, and revisits the boughs of his own Norwegian childhood. In this learned but also personal journey through history, he meets beings drawn to trees and trees in prayer for other beings. The understory of the book asks, "What is the religion of the more-than-human?"