Because Israel
Numbers 21:24-26
24
And Israel smote him with the edge of the sword, and possessed his land from Arnon unto Jabbok, even unto the children of Ammon: for the border of the children of Ammon was strong.
25
And Israel took all these cities: and Israel dwelt in all the cities of the Amorites, in Heshbon, and in all the villages thereof.
26
For Heshbon was the city of Sihon the king of the Amorites, who had fought against the former king of Moab, and taken all his land out of his hand, even unto Arnon.
Proverbs 19:5
A false witness shall not be unpunished, and he that speaketh lies shall not escape.
Proverbs 19:9
A false witness shall not be unpunished, and he that speaketh lies shall perish.
Jabbok
Genesis 32:22
And he rose up that night, and took his two wives, and his two womenservants, and his eleven sons, and passed over the ford Jabbok.
Deuteronomy 2:37
Only unto the land of the children of Ammon thou camest not, nor unto any place of the river Jabbok, nor unto the cities in the mountains, nor unto whatsoever the LORD our God forbad us.
Deuteronomy 3:16
And unto the Reubenites and unto the Gadites I gave from Gilead even unto the river Arnon half the valley, and the border even unto the river Jabbok, which is the border of the children of Ammon;