Yeshayah 48:1-2

Orthodox Jewish Bible

48 Hear ye this, O Bais Ya’akov, which are called b’shem Yisroel, and are come forth out of the waters of Yehudah, which take oaths b’Shem Hashem, and invoke Elohei Yisroel, but not in emes, nor in tzedakah.

² For they call themselves of the Ir HaKodesh, and lean themselves upon Elohei Yisroel; Hashem Tzva’os Shmo.