'Grumbling' in the Bible

Then the Jewish leaders began grumbling about him because he said, "I am the bread that came down from heaven."

Jesus answered them, "Stop grumbling among yourselves.

But Jesus, knowing within himself that his disciples were grumbling about this, asked them, "Does this offend you?

There was much grumbling among the crowds concerning Him; some were saying, “He is a good man”; others were saying, “No, on the contrary, He leads the people astray.”