Letter of the Archimandrites of Arabia
The Letter of the Archimandrites of Arabia, dated to 570 AD, is a Syriac Monophysite declaration of faith signed by 137 monastic leaders in Roman Arabia. Addressed to Jacob Baradaeus and other Monophysite bishops, the letter intervenes in Christological disputes in opposition to Tritheism.
Source: Wikipedia — Letter of the Archimandrites of Arabia (CC BY-SA 4.0)