When can repeating “جَاءَ زَيْدٌ، جَاءَ زَيْدٌ” be rhetorically useful?

Aḍrub al-Khabar: Ibtidāʾī, Ṭalabī and Inkārī Reports

• When the listener truly needs reinforcement or attention
• Only when every word is uneloquent
• Only when nothing is being reported
• When repetition changes the tense