Judges 1:8

Even though the soldiers of Judah and Simeon captured and burned Jerusalem, the Israelites were not able to keep the Jebusites from returning to control their ancient capital (cf. Judges 1:21; Judges 19:11-12; Joshua 15:63).

"The Jebusites were a mixed people who descended from early colonies of Hittites and Amorites in Canaan." [Note: Lewis, p. 22. See also The New Bible Dictionary, 1962 ed., s.v. "Jebusite," by D. J. Wiseman.]

Jerusalem became Israel’s permanent possession years later when David finally exterminated the Jebusites (2 Samuel 5:6-9). The Israelites’ unfaithfulness in subduing the land is one of the major emphases of Judges. [Note: Thomas L. Constable, "A Theology of Joshua, Judges, and Ruth," in A Biblical Theology of the Old Testament, pp. 107-8.]