murmuring

The murmuring of the Hebrews in the wilderness, called forth the displeasure of God, which was only averted by the earnest prayer of Moses (Num. 11:33-34; 12; 14:27, 30-31; 16:3; 21:4-6; Ps. 106:25).

Forbidden by Paul (1 Cor. 10:10).