Paul Griffiths, on the LORD as theology’s topic:
When Christians prepare to approach the LORD in eucharistic worship, they do so haltingly, repeatedly underlining in the words they speak that what they are about to do cannot be done. Even after the bread and wine have been consecrated before the congregation’s face and offered to it, and even after the declaration is made that those who can receive the body and blood are happy—blessed—to be able to do so, the congregation declares that it is incapable of receiving what is offered, echoing, in doing so, the scriptural words of the Roman centurion who asks Jesus to heal his servant: non sum dignus ut intres sub tectum meum, sed tantum dic verbo et sanabitur anima mea (I’m not worthy that you should enter under my roof, but only say the word and my soul shall be healed). All theological discourse works under this rubric: non sum dignus … tantum dic verbo. Theologians, whether believers or not, lovers of the LORD or not, need to remember this so that theology, rather than something else, is what they do.