This is what the LORD says: “For three transgressions of Edom, even four, I will not revoke My judgment, because he pursued his brother with the sword and stifled all compassion; his anger raged continually, and his fury flamed incessantly.
Jewish Publication Society of America Version (JPS1917) - Amos 1:11 >Thus saith the LORD: For three transgressions of Edom, yea, for four, I will not reverse it: because he did pursue his brother with the sword, and did cast off all pity, and his anger did tear perpetually, and he kept his wrath for ever.