They are well-fed, eager stallions, each neighing after someone else's wife.
Jeremiah 5:8 In-Context
Therefore a lion from the forest will attack them, a wolf from the desert will ravage them, a leopard will lie in wait near their towns to tear to pieces any who venture out, for their rebellion is great and their backslidings many.
“Why should I forgive you? Your children have forsaken me and sworn by gods that are not gods. I supplied all their needs, yet they committed adultery and thronged to the houses of prostitutes.
They are well-fed, lusty stallions, each neighing for another man’s wife.
Should I not punish them for this?” declares the LORD. “Should I not avenge myself on such a nation as this?
“Go through her vineyards and ravage them, but do not destroy them completely. Strip off her branches, for these people do not belong to the LORD.