סְלַֽח־נָ֗א לַעֲוֺ֛ן הָעָ֥ם הַזֶּ֖ה כְּגֹ֣דֶל חַסְדֶּ֑ךָ וְכַאֲשֶׁ֤ר נָשָׂ֙אתָה֙ לָעָ֣ם הַזֶּ֔ה מִמִּצְרַ֖יִם וְעַד־הֵֽנָּה׃
Pardon, I pray Thee, the iniquity of this people according unto the greatness of Thy lovingkindness, and according as Thou hast forgiven this people, from Egypt even until now.’
Read kabbalistic (mystical) interpretation of Numbers 14:19: and classical mystical sources.