New Defender's Study Bible Notes
48:2 city of the great King. Jerusalem was called “the city of the great King” by the Lord Jesus (Matthew 5:35). God Himself is, of course, the “great King over all the earth” (Psalm 47:2,7), and Jerusalem is the earthly “city of God, the holy place of the tabernacles of the Most High” (Psalm 46:4). Thus Psalms 46, 47, 48 have a common theme.
48:7 breakest the ships of Tarshish. Since the prophetic setting of this psalm, like Psalm 47, seem to center on the future kingdom age, Tarshish here probably symbolizes the great sea-faring nations of the last days. See note on Ezekiel 38:13.
48:14 unto death. This could just as well read “into death.” That is, God guides even beyond the point of death.