without a murmur
With no complaint or objection; in a quietly passive manner.
My mother spoke of Christ to my father, by her feminine and childlike virtues, and, after having borne his violence without a murmur or complaint, gained him at the close of his life to Christ. Augustine of Hippo
Men are now proud of belonging to a conquering nation, and without a murmur they lay down their persons and their wealth, if by so doing they may fend off subjection. William James
You [recruits] have sworn loyalty to me. You have only one enemy and that is my enemy. In the present social confusion, it may come about that I order you to shoot down your own relatives, brothers or parents but even then you must follow my orders without a murmur. Wilhelm II of Germany
When the agent failed to move them, he and the would-be settlers called upon the army to force them to be good, namely, without a murmur to leave their pleasant inheritance in the hands of a crowd of greedy grafters. Chief Joseph