וַיַּ֧עַן הַשָּׂטָ֛ן אֶת־יְהוָ֖ה וַיֹּאמַ֑ר ע֣וֹר בְּעַד־ע֗וֹר וְכֹל֙ אֲשֶׁ֣ר לָאִ֔ישׁ יִתֵּ֖ן בְּעַ֥ד נַפְשֽׁוֹ׃
And Satan answered the LORD, and said: ‘Skin for skin, yea, all that a man hath will he give for his life.
Read Kabbalistic (mystical) interpretations of Job 2:4: Zohar and classical Jewish mystical sources, free online.