Numbers 11:1

The people complained Hebrew, as it were, complained; that is, they began to mutter some complaints, and for a while, it seems, kept their discontent from coming to Moses's ear. The chief cause of their murmuring is represented (Num 11:5) to be their growing weary of the manna, upon which they had now lived for a year. But, besides this, it is probable that their last three days' journey in that vast howling wilderness, the remembrance of their long abode in it, and the fear of many more tedious journeys, and much delay before they should arrive at the land of milk and honey, which they longed for, had greatly contributed to their dissatisfaction. It displeased the Lord Though their discontent did not at first break forth into open murmurings against Moses, yet God saw the mutinous and rebellious disposition of their minds, and testified his displeasure on account of it. The fire of the Lord A fire sent from God in an extraordinary manner, perhaps from the pillar of cloud and fire, or lightning from heaven, which is called the fire of God, 2 Kings 1:12; Job 1:16. Le Clerc thinks it might be one of those fiery blasting winds which are incident to those countries, See Ezekiel 17:10; Ezekiel 19:12. It was, however, sent in a supernatural and miraculous way. The uttermost part of the camp Either because the sin began there among the mixed multitude, or in mercy to the people, whom he would rather awaken to repentance than destroy; and therefore he sent it into the skirts, and not the midst of the camp.