יְהוָ֤ה ׀ סַֽלְעִ֥י וּמְצוּדָתִ֗י וּמְפַ֫לְטִ֥י אֵלִ֣י צ֭וּרִי אֶֽחֱסֶה־בּ֑וֹ מָֽגִנִּ֥י וְקֶֽרֶן־יִ֝שְׁעִ֗י מִשְׂגַּבִּֽי׃
Rashi on Psalms
my rock For You saved me at the Rock of the Divisions (I Sam. 23:28), when I was trapped between Saul and his men, to be caught, as it is stated (in I Sam. 23:26): “but Saul and his men were encircling to David and his men etc.”