Following Genesis, we can then say that the human imaging of God takes shape in two forms of horizontal relatedness: 1) with other people and 2) with the rest of the created world.
The Church’s image and role in the world (as contingent in these two spheres) is to serve and sacrifice to 1) other people and 2) the rest of the created world.
The human imaging of God can be best articulated in an ethic of sacrifice (Gunton’s Christ and Creation, Ch. 4, pp 117).
Self-sacrifice, or self-crucifixion, is worship—not giving up in surrender in such a way as to make a hero of ourselves and get God’s attention, but as a way of offering to God that creation which He has placed into our hands.