The Christadelphian doctrine of God is unitarian in structure but arrived at by a completely different route from the Unitarians, whom Christadelphians regard as rationalists rather than as allies. The argument is textual and relentless: the Shema, the repeated statements that God is one, the absence of the word Trinity from Scripture, and a reading of John 1 in which the Word is God's purpose and wisdom rather than a pre-existent person. Christ is fully human, born with the same nature as everyone else, who overcame sin and was then given immortality — which makes his obedience a real achievement rather than a foregone conclusion, and which is precisely the point Christadelphians press. The position sits outside the Nicene definition and Christadelphians say so themselves rather than trying to be admitted; ecumenical bodies do not include them and they do not apply.