וַיֹּ֙אמֶר֙ יִשְׂרָאֵ֔ל לָמָ֥ה הֲרֵעֹתֶ֖ם לִ֑י לְהַגִּ֣יד לָאִ֔ישׁ הַע֥וֹד לָכֶ֖ם אָֽח׃
And Israel said: ‘Wherefore dealt ye so ill with me, as to tell the man whether ye had yet a brother?’
Read kabbalistic (mystical) interpretation of Genesis 43:6: and classical mystical sources.