'Grumbling' in the Bible

The Pharisees and their scribes [seeing those with whom He was associating] began murmuring in discontent to His disciples, asking, “Why are you eating and drinking with the tax collectors and sinners [including non-observant Jews]?”

So Jesus answered, “Stop murmuring among yourselves.

But Jesus, aware that His disciples were complaining about it, asked them, “Does this cause you to stumble and take offense?

Do everything without murmuring or questioning [the providence of God],