2 Samuel 4:5
“And the sons of Rimmon the Beerothite, Rechab and Baanah, went, and came about the heat of the day to the house of Ish–bosheth, who lay on a bed at noon.”
And the Beerothites fled to Gittaim, and were sojourners there until this day.)
And Jonathan, Saul’s son, had a son that was lame of his feet. He was five years old when the tidings came of Saul and Jonathan out of Jezreel, and his nurse took him up, and fled: and it came to pass, as she made haste to flee, that he fell, and became lame. And his name was Mephibosheth.
And the sons of Rimmon the Beerothite, Rechab and Baanah, went, and came about the heat of the day to the house of Ish–bosheth, who lay on a bed at noon.
And they came thither into the midst of the house, as though they would have fetched wheat; and they smote him under the fifth rib: and Rechab and Baanah his brother escaped.
For when they came into the house, he lay on his bed in his bedchamber, and they smote him, and slew him, and beheaded him, and took his head, and gat them away through the plain all night.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“If a ruler hearken to lies, all his servants are wicked.”
“In those days, while Mordecai sat in the king’s gate, two of the king’s chamberlains, Bigthan and Teresh, of those which kept the door, were wroth, and sought to lay hand on the king Ahasuerus.”
“But Abner the son of Ner, captain of Saul’s host, took Ish–bosheth the son of Saul, and brought him over to Mahanaim;”
“Now after the time that Amaziah did turn away from following the Lord they made a conspiracy against him in Jerusalem; and he fled to Lachish: but they sent to Lachish after him, and slew him there.”
“For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape.”