They were like well-fed lusty stallions; Every one neighed after his neighbor's wife.
Jeremiah 5:8
Surrounding context
5:7 "How shall I pardon you for this? Your children have forsaken Me And sworn by those that are not gods. When I had fed them to the full, Then they committed adultery And assembled themselves by troops in the harlots' houses.
5:8 They were like well-fed lusty stallions; Every one neighed after his neighbor's wife.
5:9 Shall I not punish them for these things?" says the LORD. "And shall I not avenge Myself on such a nation as this?