Final answer:
The subject in question is the prophet Jeremiah, referred to as the 'weeping prophet' whose life was characterized by messages of repentance, personal sacrifice, and being perceived as a traitor.
Step-by-step explanation:
The question refers to the Biblical figure commonly known as the prophet Jeremiah. He was called by God before his birth to serve as a prophet (Jeremiah 1:5), and he became known for his emotional and plaintive warnings to Judah, earning him the nickname 'the weeping prophet.' Jeremiah's life was one of great personal sacrifice; God commanded him not to marry as a sign of the impending doom on his society (Jeremiah 16:2).
His messages often centered on the themes of repentance and turning back to God, which inevitably made him an outcast among his own people, and he expressed feelings of deep sorrow and depression (Jeremiah 20:14-18). Furthermore, Jeremiah was perceived as a traitor by his own people because he warned of Judah's downfall and urged cooperation with the Babylonians, which was contrary to the desire of Judah's leaders to resist Babylonian conquest (Jeremiah 38:1-6).