Scripture references to night and day prayer

It is not difficult to prove night and day prayer ("prayer furnaces" to use IHOP-KC terminology) with our 3 books of Scripture....prayer without ceasing, pray continuously--Enos 1:6, 2 Nephi 14:12, 15:4; Alma 16:219-222, 17:69-70, 3 Nephi 8:50, 9:38, "pray, prayed" is used 27x in 1st 38 verses of ch. 9 of 3 Nephi, 3 Nephi 12:14; Doctrine & Covenants 3:1e, 17:6e, 18:6a, 25:1b, 32:3e, 85:36b-c, 38c; 90:8d, 98:11a-d (Luke 18:1-8), 157:12, ...and probably more that I missed.