Genesis 2:14

And the name of the third [is] Tigris. It flows east of Assyria. And the fourth river [is] the Euphrates.

Daniel 10:4

And [then] on [the] twenty-fourth day of the first month, I [myself] was on the bank of the great river; that is, [the] Tigris.

Genesis 15:18

On that day Yahweh {made} a covenant with Abram saying, "To your offspring I will give this land, from the river of Egypt to the great river, the Euphrates river,

Genesis 10:11

From that land he went out [to] Assyria, and he built Nineveh, Rehoboth-Ir, Calah,

Genesis 10:22

The sons of Shem: Elam, Asshur, Arphaxad, Lud, and Aram.

Genesis 25:18

They settled from Havilah to Shur, which [was] opposite Egypt, going toward Asshur, opposite; he {settled} opposite all his brothers.

Deuteronomy 1:7

Turn [now] and {move on}, and go [into] the hill of the Amorites and to all [of] the neighboring regions in the Jordan {Valley} in the hill country and in the Negev and in the coastal area along the sea, [into] the land of the Canaanites and [into] the Lebanon, as far as the great river Euphrates.

Deuteronomy 11:24

Every place on which the sole of your foot treads, it shall be yours; your boundary shall be from the desert and Lebanon from the river, the river Euphrates, on up to the western sea.

Revelation 9:14

saying to the sixth angel, the one who had the trumpet, "Release the four angels who have been bound at the great river Euphrates!"

Treasury of Scripture Knowledge

Summary

And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.

Hiddekel

Toward the east of

Bible References

Hiddekel

Daniel 10:4
And [then] on [the] twenty-fourth day of the first month, I [myself] was on the bank of the great river; that is, [the] Tigris.

Toward the east of

Genesis 10:11
From that land he went out [to] Assyria, and he built Nineveh, Rehoboth-Ir, Calah,
Genesis 25:18
They settled from Havilah to Shur, which [was] opposite Egypt, going toward Asshur, opposite; he {settled} opposite all his brothers.

Euphrates

Genesis 15:18
On that day Yahweh {made} a covenant with Abram saying, "To your offspring I will give this land, from the river of Egypt to the great river, the Euphrates river,
Deuteronomy 1:7
Turn [now] and {move on}, and go [into] the hill of the Amorites and to all [of] the neighboring regions in the Jordan {Valley} in the hill country and in the Negev and in the coastal area along the sea, [into] the land of the Canaanites and [into] the Lebanon, as far as the great river Euphrates.
Deuteronomy 11:24
Every place on which the sole of your foot treads, it shall be yours; your boundary shall be from the desert and Lebanon from the river, the river Euphrates, on up to the western sea.
Revelation 9:14
saying to the sixth angel, the one who had the trumpet, "Release the four angels who have been bound at the great river Euphrates!"