Judith 7:10

10 These Israelites do not rely on their weapons for defense but rather on the height of the mountains where they live, since the mountains are not easy to climb.

Judith 7:10 In-Context

8 All the leaders of the Edomite and Moabite forces, along with the commanders of the troops from the Mediterranean coast, came to Holofernes and said,
9 "Sir, if you listen to our advice, your troops will not suffer heavy losses.
10 These Israelites do not rely on their weapons for defense but rather on the height of the mountains where they live, since the mountains are not easy to climb.
11 So then, General Holofernes, if you do not make a direct attack on them, your whole army will suffer no casualties.
12 Stay in your camp and keep your soldiers in their quarters. Just command your men to blockade the springs at the foot of the mountains,
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.