'House of Judah' in the Bible

And the men of Judah came, and they anointed David king over the house of Judah there. And they told David, saying, The men of Jabesh-gilead buried Saul.

And now let your hands be strengthened, and be brave. For your master Saul is dead, and also the house of Judah has anointed me king over them.

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

And it happened, the number of days that David was king in Hebron over the house of Judah was seven years and six months.