|Noah Webster's Dictionary|
(p. pr. & vb. n.) of Muse.
Int. Standard Bible Encyclopedia
muz, muz'-ing: The word occurs twice in the Old Testament, in the sense of "meditate" (Psalm 39:3, chaghigh; Psalm 143:5, siach); in the New Testament once (Luke 3:15, dialogizomai, where the Revised Version (British and American) reads "reasoned").
Musing (3 Occurrences)
1 Kings 18:27 It happened at noon, that Elijah mocked them, and said, "Cry aloud; for he is a god. Either he is musing, or he has gone aside, or he is on a journey, or perhaps he sleeps and must be awakened." (WEB JPS ASV RSV)
Psalms 39:3 My heart was hot within me, while I was musing the fire burned: then spake I with my tongue, (KJV JPS ASV DBY WBS NAS)
Psalms 104:34 Let thy meditation be sweet unto him: I will rejoice in Jehovah. (See JPS)