Havilah in Fausset's Bible Dictionary

1. Genesis 10:7. 2. Descendants of Havilah, son of Cush, probably intermingled with the descendants of Havilah the Joktanite Havilah. So one people was formed, occupying Khawlan, the fertile region in the N.W. portion of Yemen or Arabia Felix. The Joktanite settlement was probably the earliest, the Arabs tracing the name Khawlan (which is another form of Havilah or Chavilah, with the ending n) to a descendant of Kahtan or Joktan. The region is fertile, abounding in myrrh, well watered, and populous. The Havilah bordering on the Ishmaelites "as thou goest to Assyria" (Genesis 25:18), also on Amalek (1 Samuel 15:7), seems distinct. This Havilah is not as the former Havilah in the heart of Yemen, but on the border of Arabia Petrea toward Yemen, between the Nabateans and the Hagarites; the country of the Chauloteans.