Charles H. Spurgeon on Psalms 120:4

By "coals of juniper, "we understand arrows made of this wood, which when heated possesses the property of retaining the heat for a long time; and consequently, arrows of this kind, after having been placed in the fire, would in the hands of the warrior do terrible execution. Some persons think that this verse is not to be understood as a figurative description of calumny, but rather of the punishment which God will inflict upon the calumniator. They therefore regard this as an answer to the question in the preceding verse: "What shall he give?" etc. —George Phillips.