Denger translates Psalm 13-5 “As one who dwells under the protection of the most high dwelling under the shadow of the Almighty, I say to YAHWEH “My refuge and my fortress, my God in Whom I Trust” (Wings of God Sermon Notes for Psalm 91) God uses this refuge as synonyms, refuges, “shadow,” fortress, “dwelling place,” peace, and shield. (Sermon Notes) Which means we are in the protective guard of the Lord, the word refuge in the literary sense also means that the Lord reigns. When we put our trust in the Lord, he becomes our refuge and our fortress, as evident in Judges 9:15 "said the thorn to the trees, if you really want to anoint me king over you, come and take refuge in my shade, but otherwise , then let a fire come out of the bramble and devour the cedars of Lebanon. God sometimes uses metaphors to make his point, he wants us to seek refuge in him and if we refuse his call we will be left to ourselves.