'Dawn' in the Bible

Until the day dawn, and the shadows flee away. Turn, my beloved: be thou like a gazelle or a young hart, Upon the mountains of Bether.

Until the day dawn, and the shadows flee away, I will get me to the mountain of myrrh, And to the hill of frankincense.

Y Who is this who shines like the dawn—as beautiful as the moon,bright as the sun,awe-inspiring as an army with banners?