כִּ֤י שֶׁ֨מֶשׁ ׀ וּמָגֵן֮ יְהוָ֪ה אֱלֹ֫הִ֥ים חֵ֣ן וְ֭כָבוֹד יִתֵּ֣ן יְהוָ֑ה לֹ֥א יִמְנַע־ט֝֗וֹב לַֽהֹלְכִ֥ים בְּתָמִֽים׃
Porque sol y escudo es SEÑOR Dios: Gracia y gloria dará SEÑOR: No quitará el bien á los que en integridad andan.
Rashi on Psalms
For a sun and a shield שמש may be interpreted according to its apparent meaning, but Midrash Psalms interprets it as an expression of the points of the wall.