John Gill Commentary Mark 10:41

"And when the ten heard it, they began to be moved with indignation concerning James and John." — Mark 10:41 (ASV)

And when the ten heard it The request made by the sons of Zebedee or their mother for them:

they began to be much displeased with James and John ; Matthew says "they were moved with indignation against them", (Matthew 20:24) ; they were filled with, wrath and were very angry with them; which they showed in their countenances and by their behaviour towards them as well as by words: the Syriac and Arabic versions, render it, "they began to murmur against them"; they highly resented it and were ready to break out into an open quarrel upon it; (See Gill on Matthew 20:24).