וְנָתַתִּ֤י לְךָ֙ אוֹצְר֣וֹת חֹ֔שֶׁךְ וּמַטְמֻנֵ֖י מִסְתָּרִ֑ים לְמַ֣עַן תֵּדַ֗ע כִּֽי־אֲנִ֧י יְהוָ֛ה הַקּוֹרֵ֥א בְשִׁמְךָ֖ אֱלֹהֵ֥י יִשְׂרָאֵֽל׃
Je te donnerai des trésors enfouis dans les ténèbres, des richesses cachées dans des lieux secrets, pour que tu saches que je suis l’Éternel, le Dieu d’Israël, qui t’appelle par ton nom.
Siftei Chakhamim
An old woman in the houseùa treasure (סימא) in the house. A good treasure. The Targum translates ומטמוני מסתרים, “secret hidden things” (Yeshayahu 45:3) as סימא דמטמרן.
Malbim
The pathway I have cleared in explaining this book leads the reader directly to a city of habitation (Psalms 107:7), bringing him to a place of rest and inheritance (Deuteronomy 12:9), where he will discover hidden treasures (Isaiah 45:3); for a wise word is a precious jewel (Proverbs 20:15).
Malbim
And now that I have made all this known to you; and after giving thanks to God for the mercy He has bestowed upon me (Psalms 117:2) by enlightening me and imparting it all to me; and after praying that He may guide me in the paths of righteousness (Psalms 23:3) and teach me His ways for His Name's sake. (Isaiah 2:3) I will now set off ahead of you and make the crooked places straight (Isaiah 45:2), I will bring you treasures from the darkness, and the hidden riches of secret places (Isaiah 45:3). May the Lord accomplish His purpose for me, forsaking not the work of my hands (Psalms 138:8). Open my eyes, that I might perceive the wonders of Your Torah. (Psalms 119:18).