They returned home in great anger - They thought they were insulted, and began to meditate revenge. See the notes on 2 Kings 14:1-20 (note), where almost every circumstance in this chapter is examined and explained.
Such a dismissal could not fail to arouse great indignation. The Israelites would suppose themselves dismissed because their good faith was suspected. On the consequences of their indignation, see 2 Chronicles 25:13.