They compassed me about like bees -
(a) As thick or numerous as bees;
(b) armed as bees - or, their weapons might be compared to the stings of bees.
They are quenched as the fire of thorns - The Septuagint and the Vulgate render this, “They burn as the fire of thorns.” The connection would seem to demand this, but the Hebrew will not bear it. The figure is changed in the Hebrew, as is not uncommon. The mind of the psalmist at first recalls the number and the malignity of his foes; it then instantly adverts to the rapid manner in which they were destroyed. The illustration from the “fire of thorns” is derived from the fact that they quickly kindle into a blaze, and then the flame soon dies away. In Eastern countries it was common to burn over their fields in the dry time of the year, and thus to clear them of thorns and briars and weeds. Of course, at such a time they would kindle quickly, and burn rapidly, and would soon be consumed. So the psalmist says it was with his enemies. He came upon them, numerous as they were, as the fire runs over a field in a dry time, burning everything before it. Compare the notes at Isaiah 33:12.
For in the name of the Lord I will destroy them - That is, such was his purpose then; such was the reason why they so soon and suddenly disappeared.