If in truth - i. e. consistently with truth, honor, and uprightness, as explained in the interpretation in Judges 9:16, Judges 9:19.

Let fire come out ... - The propriety of the image is strictly preserved, for even the thorns of the worthless bramble might kindle a flame which would burn the stately cedars to the ground. See Psalm 58:9.

Come and put your trust in any shadow - The vain boast of the would-be sovereign; and of the man who is seeking to be put into power by the suffrages of the people. All promise, no performance.

Let fire come out of the bramble - A strong catachresis. The bramble was too low to give shelter to any tree; and so far from being able to consume others, that the smallest fire will reduce it to ashes, and that in the shortest time. Hence the very transitory mirth of fools is said to be like the cracking of thorns under a pot. Abimelech was the bramble; and the cedars of Lebanon, all the nobles and people of Israel. Could they therefore suppose that such a low-born, uneducated, cruel, and murderous man, could be a proper protector, or a humane governor? He who could imbrue his hands in the blood of his brethren in order to get into power, was not likely to stop at any means to retain that power when possessed. If, therefore, they took him for their king, they might rest assured that desolation and blood would mark the whole of his reign. The condensed moral of the whole fable is this: Weak, worthless, and wicked men, will ever be foremost to thrust themselves into power; and, in the end, to bring ruin upon themselves, and on the unhappy people over whom they preside.

And the bramble said unto the trees,.... Accepting of their offer at once:

if ye in trust anoint me king over you; suspecting they were not hearty and cordial in their choice and call to the kingly authority over them:

then come and put your trust in my shadow; promising protection to them as his subjects, requiring their confidence in him, and boasting of the good they should receive from him, as is common with wicked princes at their first entering on their office; but, alas! what shadow or protection can there be in a bramble? if a man attempts: to put himself under it for shelter, he will find it will be of no use to him, but harmful, since, the nearer and closer he comes to it, the more he will be scratched and torn by it:

and if not, let fire come out of the bramble, and devour the cedars of Lebanon; signifying, that if they did not heartily submit to his government, and put confidence in him, and prove faithful to him, they should smart for it, and feel his wrath and vengeance, even the greatest men among them, comparable to the cedars of Lebanon; for thorns and brambles catching fire, as they easily do, or fire being put to them, as weak as they are, and placed under the tallest and strongest cedars, will soon fetch them down to the ground; and the words of the bramble, or Abimelech, proved true to the Shechemites, he is made to speak in this parable.

And the bramble said unto the trees, If in truth ye anoint me king over you, then come and put your trust in my shadow: and if not, let {f} fire come out of the bramble, and devour the cedars of Lebanon.

(f) Abimelech will destroy the nobles of Shechem.

9:15 If in truth - If you deal truly and justly in making me king. Then trust - Then you may expect protection under my government. Devour the cedars - In stead of protection, you shall receive destruction by me; especially you cedars, that is, nobles, such as the house of Millo, who have been most forward in this work.

Margin trust

See Scofield Note: "Ps 2:12"

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.