וְנָטִ֤יתִי אֶת־יָדִי֙ עֲלֵיהֶ֔ם וְנָתַתִּ֨י אֶת־הָאָ֜רֶץ שְׁמָמָ֤ה וּמְשַׁמָּה֙ מִמִּדְבַּ֣ר דִּבְלָ֔תָה בְּכֹ֖ל מוֹשְׁבֽוֹתֵיהֶ֑ם וְיָדְע֖וּ כִּֽי־אֲנִ֥י יְהוָֽה׃ (פ)
내가 내 손을 그들의 위에 펴서 그 거하는 온 땅 곧 광야에서부터 디블라까지 처량하고 황무하게 하리니 그들이 나를 여호와인 줄 알리라
Ibn Ezra
משען ומשענה. The stay and the staff. Poetically said for every kind of staff. 1The repetition of a noun with or without the variation of its form is often used for כל, all; for instance, איש איש every man, Lev. 15:2, חכם מחכם wise in every respect (Prov. 30:24), שממה ומשמה all kinds of desolation (Ez. 6:14, comp. Job 30:3). The explanation of the figure follows immediately, The whole stay of bread and water.
Rashi
in order that I lay them desolate Heb. אֲשְּׁמֵם. I shall lay them desolate and destroy them. אֲשְּׁמֵם, is an expression of שְּׁמָמָה, desolation. Whoever explains it as an expression of אַשְּׁמָה, guilt, errs, because the ‘aleph’ is not part of the radical.