Psalm 55:18. Psalm 55 is appointed to be said or sung at Evensong on the 10th day of the month in the BCP 1662.
For the end is at noon-day; that is to say, whence there is no going down unto setting. For at noon-day there is light full high, the splendour of wisdom, the fervour of love.
In evening and in morning and at noon-day.
In evening,the Lord on the Cross;
in morning,in Resurrection;
at noon-day,in Ascension. I will recount in evening the patience of Him dying, I will tell forth in morning the life of Him rising, I will pray that He hearken at noon-day sitting at the right hand of the Father.
Augustine on Psalm 55:18.