As you have probably heard it said, we are often our own worst enemies. Judah exhibited that as they were rebuilding the wall around Jerusalem,
“Then Judah said, ‘The strength of the laborers is failing, and there is so much rubbish that we are not able to build the wall’” (Nehemiah 4:10).
They listened to the mockery of their enemies, and then the Jews started so speaking that they discouraged themselves. Listen to yourself talk to yourself, and find out whether you discourage yourself.