Adam Clarke's Commentary on the Bible - Psalms 99:8
Thou - forgavest them - When the people had sinned, and wrath was about to descend on them, Moses and Aaron interceded for them, and they were not destroyed. Tookest vengeance of their inventions - God spared them, but showed his displeasure at their misdoings. He chastised, but did not consume them. This is amply proved in the history of this people. read more
Adam Clarke's Commentary on the Bible - Psalms 99:7
He spake unto them in the cloudy pillar - That is, he directed all their operations, marchings, and encampments by this cloudy pillar. See Exodus 33:9 . They kept his testimonies - Do ye the same, and God will be your portion as he was theirs. read more