כִּ֣י לֹ֧א יַעֲשֶׂ֛ה אֲדֹנָ֥י יְהוִ֖ה דָּבָ֑ר כִּ֚י אִם־גָּלָ֣ה סוֹד֔וֹ אֶל־עֲבָדָ֖יו הַנְּבִיאִֽים׃
For the Lord GOD will do nothing, But He revealeth His counsel unto His servants the prophets.
Read halakhic rulings (Jewish law) on Amos 3:7: and classical halakhic sources.