Yeshayah 51:1-2

Orthodox Jewish Bible

51 Pay heed to Me, ye that pursue tzedek, ye that seek Hashem; look unto the Tzur from where ye are cut, and to the quarry from where ye were hewn.

² Look unto Avraham Avichem, and unto Sarah that gave birth to you; for I called him as one alone, and put a brocha on him, and made him many.