Accordingly, the starting point is that this court has jurisdiction to consider both whether the decisions to expel the claimants was made in accordance with the rules of natural justice, as well as whether they were made irrationally. In respect of the natural justice ground, there is no question of this court being asked to adjudicate on any matter of religious doctrine or belief. In respect of the irrationality ground, the defendant argues that this involves the question of whether SGSD departed from its core beliefs, and thus the court should be slow to import Wednesbury principles. As a preliminary matter, I note that I am not called to make a determination as to whether participation in SGSD would be contrary to the interest and harmony of SGS. The question is merely whether SGS’s determination to that effect is Wednesbury unreasonable, an inquiry that must proceed on the basis of the avowed values of SGS. As the defendant rightly points out, this is a high threshold. In any event, it is not strictly necessary for me to decide whether the Wednesbury principles should be disapplied because I find that, even if they were applicable, SGS has not acted irrationally: see below at [81].