And Jotham ran away, and fled, and went to Beer, and dwelt there, for fear of Abimelech his brother.

Wesley's Notes

9:21 And fled - Which he might easily do, having the advantage of the hill, and because the people were not forward to pursue a man whom they knew to have such just cause to speak, and so little power to do them hurt. To Beer - A place remote from Shechem, and out of Abimelech's reach.

Jamieson-Fausset-Brown Bible Commentary

21. Joatham . went to Beer-the modern village El-Bireh, on the ridge which bounds the northern prospect of Jerusalem.

Matthew Henry's Concise Commentary

9:7-21 There was no occasion for the trees to choose a king, they are all the trees of the Lord which he has planted. Nor was there any occasion for Israel to set a king over them, for the Lord was their King. Those who bear fruit for the public good, are justly respected and honoured by all that are wise, more than those who merely make a figure. All these fruit-trees gave much the same reason for their refusal to be promoted over the trees; or, as the margin reads it, to go up and down for the trees. To rule, involves a man in a great deal both of toil and care. Those who are preferred to public trust and power, must forego all private interests and advantages, for the good of others. And those advanced to honour and dignity, are in great danger of losing their fruitfulness. For which reason, they that desire to do good, are afraid of being too great. Jotham compares Abimelech to the bramble or thistle, a worthless plant, whose end is to be burned. Such a one was Abimelech.