Title: Judges 9. Abimelech, part 3: Jotham interprets his parable and the conflict at Shechem.
Jdg 9:14 "Finally all the trees said to the bramble, 'You come, reign over us!'
Jdg 9:15 "And the bramble said to the trees, 'If in truth you are anointing me as king over you, come and take refuge in my shade; but if not, may fire come out from the bramble and consume the cedars of Lebanon.'
Abimelech can offer no comfort or security to Shechem, but, as worthless as he is, he can destroy them, and he does.
The briar, which has nothing but thorns upon it, and does not even cast sufficient shadow for anyone to lie down in its shadow and protect himself from the burning heat of the sun, is an admirable simile for a worthless man, who can do nothing...
for full notes: http://www.cgtruth.org/index.php?proc=msg&sf=vw&tid=1561