Thereafter, from verse 9, Prophet Jeremiah switches from bad political leaders to false prophets and describes how crushed and trembling his heart was when he received God’s Word exposing false and godless prophets. As a matter of facts, in verse 11, he talked about how he caught them in their evil acts right there in the temple and then he pronounced judgement against them in verse 12.
Verse 13 describes the sins of the false prophets in the northern part of Israel (Samaria), while verse 14 described the sins of false prophets in the southern part (Jerusalem).
They were busy committing adultery, sleeping with women right there in the temple. They were also telling lies and, in the process, helping others to do wrong. Jeremiah says, they were as bad as the people of Sodom and Gomorrah.