Your sincerity is not in dispute.

你的诚恳是无可置辩的。

That their theology so perfectly supported their material privileges only strengthened the sincerity with which it was embraced.

神学如此完美地支持了他们的物质特权，这只会更加强他们的虔诚。

※Misfortunes test the sincerity of friends. 患难见友情。
※Sincerity, a deep genuine, heart-felt sincerity, is a trait of true and noble manhood. 真诚－－深刻真挚发自内心的真诚，是真正高尚的人性的一种品质。
※The truest politeness comes from sincerity. 真正的殷勤出于真诚。
※The worst vice of the fanatic is his sincerity. 狂热者的大恶在于他的诚意。
※Complete sincerity can affect even metal and stone. 精诚所至,金石为开.