mûr´mur, mûr´mur-ingz: The Hebrew word (לוּן, lūn) denotes the semi-articulated mutterings of disaffected persons. It is used in connection with the complaints of the Israelites in the desert against Yahweh on the one hand, and against Moses and Aaron on the other hand [Exo 16:7-8]; [Num 14:27], [Num 14:36]; [Num 16:11]; [Num 17:5]. In three places [Deu 1:27]; [Psa 106:25]; [Isa 29:24], “murmur” translates a Hebrew word (רגן, rāghan) which suggests the malicious whispering of slander.
In the New Testament “murmur” renders two different words, namely, γογγύζω, goggúzō, and ἐμβριμάομαι, embrimáomai. The latter word suggests indignation and fault-finding ([Mar 14:4] the King James Version). The former word (or a compound of it) is generally used in connection with the complainings of the Pharisees and scribes [Mat 20:11]; [Luk 5:30]; [Luk 15:2]; [Luk 19:7].