'Falling' in the Bible

When he was in the gate of Benjamin, a captain of the guard was there, whose name was Irijah, the son of Shelemiah, the son of Hananiah; and he laid hold on Jeremiah the prophet, saying, You are falling away to the Chaldeans.

Then Jeremiah said, It is false; I am not falling away to the Chaldeans. But he didn't listen to him; so Irijah laid hold on Jeremiah, and brought him to the princes.