1 Chronicles 11:5-7

21st Century King James Version

⁵ And the inhabitants of Jebus said to David, “Thou shalt not come hither.” Nevertheless David took the citadel of Zion, which is the City of David.

⁶ And David said, “Whosoever smiteth the Jebusites first shall be chief and captain.” So Joab the son of Zeruiah went first up, and was chief.

⁷ And David dwelt in the citadel; therefore they called it the City of David [that is, Zion].