Psalms 106:25 - Albert Barnes' Notes on the Bible

But murmured in their tents ... - Numbers 14:2, Numbers 14:27. They complained of Moses; they complained of their food; they complained of the hardships of their journey; they complained of God. They did this when “in their tents;” when they had a comfortable home; when safe; when provided for; when under the direct divine protection and care. So people often complain: perhaps oftener when they have “many” comforts than when they have “few.”