Soteriological participation in God, variously termed theosis, divinisation or deification commands widespread interest across the spectrum of Christian theology. A key difficulty is how to maintain the creator–creature distinction, while bridging it to gain intimacy. Jonathan Edwards provides a Reformed perspective on this conversation, by way of his distinction between the incommunicable divine essence and the communicable divine fullness. This article clarifies this distinction by evaluating its coherence and exploring whether it divorces God's immanent and economic life. It argues that distinguishing two forms of participation – methexis verses koinonia – clarifies coherence and shows that it does not divide God's being from act.