עֻ֥צוּ עֵצָ֖ה וְתֻפָ֑ר דַּבְּר֤וּ דָבָר֙ וְלֹ֣א יָק֔וּם כִּ֥י עִמָּ֖נוּ אֵֽל׃ (ס)
Tomad consejo, y será deshecho; proferid palabra, y no será firme: porque Dios con nosotros.
Tractate Soferim
"Let me tell of the decree" (Psalm 2:7) is holy - but the sages say it's not. "before God אל אלהים in Zion" (Psalm 84:8) the first is not holy, but the second is. "To come before God אל אל in judgement" (Job 34:23) - the first is not holy, bur the second is. "Immanuel עמנו אל" the name (Isaiah 7:14) and "God is with us עמנו אל" the phrase (Isaiah 8:10) - the first is not holy, the second is is holy. The first can be erased, the second cannot be erased.