Judges 10:9

9 And the children of Ammon went over Jordan to fight with Juda, and Benjamin, and with Ephraim; and the children of Israel were greatly afflicted.

Judges 10:9 Meaning and Commentary

Judges 10:9

Moreover, the children of Ammon passed over Jordan
Not content with the oppression of the tribes on the other side Jordan, which had continued eighteen years, they came over Jordan into the land of Canaan to ravage that, and bring other of the tribes into subjection to them, particularly the three next mentioned, which lay readiest for them, when they were come over Jordan:

to fight also against Judah, and against Benjamin, and against the
house of Ephraim
who lay to the south and the southeast of the land of Canaan, and were the first the Ammonites had to fight with and subdue, when they had crossed Jordan to the east of it:

so that Israel was sore distressed;
by the Ammonites in the east, threatening those three tribes, mentioned, and the Philistines on the west, who gave disturbance to the tribes that lay nearest them, as Asher, Zebulun, Naphtali, Issachar, and Dan; and this distress was begun the same year in different parts, by different enemies.

Judges 10:9 In-Context

7 And the Lord was very angry with Israel, and sold them into the hands of the Phylistines, and into the hand of the children of Ammon.

8 And they afflicted and bruised the children of Israel at that time eighteen years, all the children of Israel beyond Jordan in the land of the Amorite in Galaad.

9 And the children of Ammon went over Jordan to fight with Juda, and Benjamin, and with Ephraim; and the children of Israel were greatly afflicted.

10 And the children of Israel cried to the Lord, saying, We have sinned against thee, because we have forsaken God, and served Baalim.

11 And the Lord said to the children of Israel, Did I not from Egypt and from the Amorite, and from the children of Ammon, and from the Phylistines,