וּמֵאָ֞ז בָּ֤אתִי אֶל־פַּרְעֹה֙ לְדַבֵּ֣ר בִּשְׁמֶ֔ךָ הֵרַ֖ע לָעָ֣ם הַזֶּ֑ה וְהַצֵּ֥ל לֹא־הִצַּ֖לְתָּ אֶת־עַמֶּֽךָ׃
For since I came to Pharaoh to speak in Thy name, he hath dealt ill with this people; neither hast Thou delivered Thy people at all.’
Read kabbalistic (mystical) interpretation of Exodus 5:23: and classical mystical sources.