2 Kgs 5:10

וַיִּשְׁלַ֥ח אֵלָ֛יו אֱלִישָׁ֖ע מַלְאָ֣ךְ לֵאמֹ֑ר הָל֗וֹךְ וְרָחַצְתָּ֤ שֶֽׁבַע־פְּעָמִים֙ בַּיַּרְדֵּ֔ן וְיָשֹׁ֧ב בְּשָׂרְךָ֛ לְךָ֖ וּטְהָֽר׃

Then Elisha sent him a messenger, who said, “Go and wash yourself seven times in the Jordan, and your flesh will be restored, and you will be clean.”