1 Chronicles 5:10

And in the days of Saul they made war with the Hagarites, who fell by their hand: and they dwelt in their tents throughout all the east land of Gilead.

Genesis 21:9

And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.

Genesis 25:12

Now these are the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bare unto Abraham:

1 Chronicles 5:18-21

The sons of Reuben, and the Gadites, and half the tribe of Manasseh, of valiant men, men able to bear buckler and sword, and to shoot with bow, and skilful in war, were four and forty thousand seven hundred and threescore, that went out to the war.

Psalm 83:6

The tabernacles of Edom, and the Ishmaelites; of Moab, and the Hagarenes;

Treasury of Scripture Knowledge

Summary

And in the days of Saul they made war with the Hagarites, who fell by their hand: and they dwelt in their tents throughout all the east land of Gilead.

Bible References

The hagarites

1 Chronicles 5:19
And they made war with the Hagarites, with Jetur, and Nephish, and Nodab.
Genesis 21:9
And Sarah saw the son of Hagar the Egyptian, which she had born unto Abraham, mocking.
Genesis 25:12
Now these are the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bare unto Abraham:
Psalm 83:6
The tabernacles of Edom, and the Ishmaelites; of Moab, and the Hagarenes;

King James Version Public Domain