בִּ֣י נִשְׁבַּ֔עְתִּי יָצָ֨א מִפִּ֧י צְדָקָ֛ה דָּבָ֖ר וְלֹ֣א יָשׁ֑וּב כִּי־לִי֙ תִּכְרַ֣ע כָּל־בֶּ֔רֶךְ תִּשָּׁבַ֖ע כָּל־לָשֽׁוֹן׃
Sa Aking sarili Ako ay sumumpa; lumabas sa Aking bibig ang salita sa katuwiran, at hindi ito babawiin: na sa Akin ay luluhod ang bawat tuhod, at manunumpa ang bawat dila.
Rashi
By Myself I swore and righteousness emanated from My mouth to accept all those who return to Me. I spoke a word, and it will not be retracted. What is the righteousness that emanated from My mouth? That to Me shall every knee kneel, and I will accept them, as the matter is stated (Zeph. 3: 9): “For then will I change for the people a pure language, to call all of them in the name of the Lord...”
Ibn Ezra
By myself, who am eternal. I have sworn. I have made a decree, which will not be undone.
Ibn Ezra
דבר צדקה ═ צדקה a righteous word.24aThis remark is added to explain the discrepancy between the genders of the verb יצא and the noun צדקה. Comp. צדקה she hath been righteous (Gen. 38:27).25This quotation is adduced to prove that the word צדקה admits also of the meaning truth.