Goggysmos (γογγυσμός) means grumbling or murmuring — the low, persistent sound of complaint. It appears 4 times in the New Testament and echoes the wilderness generation's constant murmuring against God and Moses. The onomatopoeia of the Greek word (gogg-gogg) may imitate the sound of discontent.
The New Testament's use of goggysmos deliberately evokes Israel in the wilderness — the generation that saw miracles and still grumbled. In John 6, after the feeding of the 5,000, the crowd murmurs about Jesus being the bread of life. In Acts 6:1, the Hellenistic Jews murmur about the distribution of food. Paul commands: 'Do everything without grumbling or arguing' (Philippians 2:14), echoing the wilderness failure. Grumbling is the opposite of gratitude and reveals a heart that has forgotten God's provision. James 5:9 adds the warning: the Judge is standing at the door. The standard of the new covenant is higher: those who have been given the Spirit have no legitimate cause for chronic complaint.