2 Samuel 20:4 (KJV)

So every man of Israel went up from after David, and followed Sheba the son of Bichri: but the men of Judah clave unto their king, from Jordan even to Jerusalem.

And David came to his house at Jerusalem; and the king took the ten women his concubines, whom he had left to keep the house, and put them in ward, and fed them, but went not in unto them. So they were shut up unto the day of their death, living in widowhood.

Then said the king to Amasa, Assemble me the men of Judah within three days, and be thou here present.

So Amasa went to assemble the men of Judah: but he tarried longer than the set time which he had appointed him.

And David said to Abishai, Now shall Sheba the son of Bichri do us more harm than did Absalom: take thou thy lord’s servants, and pursue after him, lest he get him fenced cities, and escape us.