Adam Clarke on Psalms 78:22

They believed not in God - After all the miracles they had seen, they were not convinced that there was a Supreme Being! and, consequently, they did not trust in his salvation - did not expect the glorious rest which he had promised them. Their descendants in the present day are precisely in this state. Multitudes of them disbelieve the Divine origin of their law, and have given up all hopes of a Messiah.