לָכֵן֙ הִנָּבֵ֣א בֶן־אָדָ֔ם וְאָמַרְתָּ֣ לְג֔וֹג כֹּ֥ה אָמַ֖ר אֲדֹנָ֣י יְהוִ֑ה הֲל֣וֹא ׀ בַּיּ֣וֹם הַה֗וּא בְּשֶׁ֨בֶת עַמִּ֧י יִשְׂרָאֵ֛ל לָבֶ֖טַח תֵּדָֽע׃
Sebab itu, bernubuatlah, hai anak manusia, dan katakanlah kepada Gog: Beginilah firman Tuhan Yang Mahakekal: Bukankah pada hari itu, ketika umat-Ku Israel tinggal dengan aman, engkau akan mengetahuinya?
Rashi
you will know Jonathan renders: you will know the retribution of My might, i.e., you will know and recognize Who is their might and their stronghold.