They took strong cities. As Jericho, Ai, Libnah, Lachish, Hazer, Hebron, etc. A fat land. Compare Numbers 14:7, Numbers 14:8; Deuteronomy 8:7-9; 2 Kings 18:32. Houses full of all goods. See Deuteronomy 6:11.
Fruit trees in abundance. The fruit trees of Palestine are, besides the vine and the olive, the fig tree, the carob or locust tree (ceratonia siliqua), the quince, the apple, the almond, the walnut, the peach, the apricot, the mulberry, the sycamore fig, the prickly pear, the pomegranate, and the orange.
Date-palms also were anciently abundant in the valley of the Jordan. They … became fat, Compare Deuteronomy 32:15 and Jeremiah 5:28, the only other places where the expression here used occurs. The comparison will show that dispraise is intended—"they grew wanton and self-indulgent."
Delighted themselves. Rather, "luxuriated" ( ἐτρύφησαν, LXX.).