וַיִּקַּ֨ח אָחָ֜ז אֶת־הַכֶּ֣סֶף וְאֶת־הַזָּהָ֗ב הַנִּמְצָא֙ בֵּ֣ית יְהוָ֔ה וּבְאֹֽצְר֖וֹת בֵּ֣ית הַמֶּ֑לֶךְ וַיִּשְׁלַ֥ח לְמֶֽלֶךְ־אַשּׁ֖וּר שֹֽׁחַד׃
Ahas nahm das Silber und das Gold, das sich vorfand im Hause des Herrn und in den Schatzkammern des Königsauses und schickte es dem König von Syrien als Tribut.
Ibn Ezra
ותשרי וגו׳ And thou gavest,12A. V., And thou wentest. etc. There is yet another evil, says the Lord, to Israel; thou hast not only worshipped idols, thou hast also sent presents to the kings of Assyria or Egypt, and hast relied on them.13Comp. c. xxx. and xxxi.; Hos. 14:4; 2 Kings 16:8, 17:4. As to the meaning of ותשרי and thou gavest a present, comp. ותשורה and a present (1 Sam. 9:7); R. Moses Hannagid14R. Moses Hannagid is probably identical with R. Moses Hakkohen. Hannagid means the prince, and is a title given to men of distinction. derives תשורה from שור to see, and explains it to signify the fees for the vision and prophecy; according to this explanation ותשרי may be compared with אשורנו I shall see him (Num. 24:17), and explained thou didst go to see him.
Rashi
to the king of Yarev This refers to Ahaz, who gave a bribe to Tiglath-pileser to assist him against Rezin the king of Aram and Pekah son of Remaliah (II Kings 16:8).