It is remarkable that Ashdod is not here mentioned, as it is in Joshua 15:46-47, in conjunction with Gaza and Ekron; but that Askelon, which is not in the list of the cities of Judah at all, is named in its stead. (See Joshua 13:3 note.) It is a curious fact that when Rameses III took Askelon it was occupied, not by Philistines, but apparently by Hebrews. Rameses began to reign in 1269 B.C., and reigned 25 years. At any time between 1269 and 1244 B.C. such occupation of Askelon by Hebrews agrees with the Book of Judges.
Related Commentaries of Judges 1:18
Judges 1:18
18 Also Judah took Gaza with the coast thereof, and Askelon with the coast thereof, and Ekron with the coast thereof.