Likutei Moharan 3:7/ליקוטי מוהר"ן ג׳:ז׳

17. The two birds of holiness, from which prophecy is drawn, are an aspect of building up Malkhut of Holiness. This is why the appointment of a king was based on prophecy; as was the case for the entire Davidic dynasty, which was prophetically determined. And prophecy is drawn from the cherubs, which correspond to the two birds, the concept of building up Malkhut of Holiness.