Psalms 47:9

The princes of the people are gathered together, even the people of the God of Abraham: for the shields of the earth belong unto God: he is greatly exalted.

The princes of the people are gathered together, (even) the people of the God of Abraham - rather, as Arabic, 'The princes of the peoples (plural) are gathered together TO the people (singular) of the God of Abraham.' The pagan princes flock together to be received among the people Yahweh (H3068). Thus, the prophecy of Jacob concerning Messiah (Shiloh) shall come to pass fully: "Unto Him shall the gathering of the people be" (Genesis 49:10; Psalms 87:4; Isaiah 60:3). The designation, "God of Abraham," is appropriately used, as it was to Abraham the promise was made, "In thee" - "in thy seed shall all the nations of the earth be blessed" (Genesis 12:3; Genesis 22:18). The Septuagint reading, which the Vulgate follows, is, 'WITH the God of Abraham, for "the people of the God of Abraham' х `am (H5971), for `im (H5973)]. The text is better.

For the shields of the earth belong unto God. The princes are metaphorically called "shields," as being the protectors of their people, (Hosea 4:18, margin.)