כֹּ֚ה אָמַ֣ר יְהוָ֔ה עַל־שְׁלֹשָׁה֙ פִּשְׁעֵ֣י דַמֶּ֔שֶׂק וְעַל־אַרְבָּעָ֖ה לֹ֣א אֲשִׁיבֶ֑נּוּ עַל־דּוּשָׁ֛ם בַּחֲרֻצ֥וֹת הַבַּרְזֶ֖ל אֶת־הַגִּלְעָֽד׃
For thus saith the LORD: For three transgressions of Damascus, yea, for four, I will not reverse it: because they have threshed Gilead with sledges of iron.
Read halakhic rulings (Jewish law) on Amos 1:3: and classical halakhic sources.