Other scripture is Revelation 12:5 and 2:26-27. The 144,000 are rulers with the lamb on Mt Zion who rule the nations with a rod of iron. That promise is given to those who conquer the works of the flesh and guard Christ's works.
And she brought forth a man-child, who was to rule all nations with a rod of iron: and her child was caught up unto God, and [to] his throne. Revelation 12:5
And he that conquers and guards my works unto the end, to him will I give power over the nations: And he shall rule them with a rod of iron; as the vessels of a potter shall they be broken to shivers: even as I received of my Father. Revelation 2:26-27
The word Israel means ruler (prince) with God.
And he said, Thy name shall be called no more Jacob, but Israel: for as a prince hast thou power with God and with men, and hast prevailed. Genesis 32:28
So as I see it Israel in God's eyes are those who rule the flesh and guard Christ's works