'House of Judah' in the Bible

And the men of Judah came, and there they anointed David king over the house of Judah. And they told David, saying, It is the men of Jabesh-Gilead that have buried Saul.

And now let your hands be strong, and be ye valiant; for your master Saul is dead, and also the house of Judah have anointed me king over them.

Ishbosheth Saul's son was forty years old when he began to reign over Israel, and he reigned two years. However, the house of Judah followed David.

And the time that David was king in Hebron over the house of Judah was seven years and six months.