Charles H. Spurgeon on Psalms 56:2

O thou most High. The Hebrew is not that rendered Most High in Ps 7:17; nor in our version is it ever rendered Most High in any other place, although found in the Hebrew Bible more than fifty times. There are but two other places where it is applied, as an epithet, to God; Ps 92:8; Mic 6:6. It is commonly rendered, from above, on high, high places, high; once loftily, Ps 73:8... The probable meaning is, they "fight against me from the high places of authority, both in Jerusalem and in Gath, "q.d., mine enemies are in power. William S. Plumer's "Studies in the Book of Psalms, "1867.