I have reconsidered my answer after finding a reference for the same text without using round brackets. [Kindly check the uploaded image]



"God's wilderness" does not refer to the famous book, since "wilderness" is not capitalized.

The word wilderness means "a solitary, lonely, desolate place."
http://www.newfoundationspubl.org/wilder.htm
"The wilderness is a locale for intense experiences—of stark need for food and water (manna and quails), of isolation (Elijah and the still small voice), of danger and divine deliverance (Hagar and Ishmael), of renewal, of encounters with God (Moses, the burning bush, the revelation of the divine name, Mount Sinai)."

My original answer:
(التي وردت في كتاب أرض الله الواسعة)
God's Wilderness, Discoveries in Sinai

"God's Wilderness—Discoveries in Sinai by Beno Rothenberg in collaboration with Yohanan Aharoni and Avia Hashimshoni; translated from the Hebrew by Jospeh Witriol. London: Thames and Hudson, 1961. 196 pp., 90 pls., 16 maps and plans. £3. 3s."
https://tinyurl.com/22vn99jz
https://www.amazon.com/Wilderness-Discoveries-Yohanan-Hashim...

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Note added at 44 mins (2021-06-04 11:01:40 GMT)
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Book title: "God's Wilderness, Discoveries in Sinai"

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Note added at 46 mins (2021-06-04 11:03:37 GMT)
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"The archaeologist Yehuda Nevo, inspired by Wansbrough’s work and his own archaeological findings in the Negev, argued that a Byzantine withdrawal from Syria in the seventh century resulted in the rise of local Arab chieftains who consolidated their power to form the Umayyad state."
https://tinyurl.com/2frwub7y

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Hi Yassine,
I think it is "أرض الله"
"فَذَرُوهَا تَأْكُلْ فِي أَرْضِ اللَّه"

(فإنها محرمة عليهم أربعين سنة يتيهون في الأرض) [يتيهون في سيناء]
لأن عنوان الكتاب يشير إلى التيه في سيناء، ولكن لا بد من الاطلاع على الكتاب قبل الجزم بذلك


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Note added at 2 hrs (2021-06-04 12:58:25 GMT)
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Peer: Yassine El Bouknify -
Opinion: agree
Comment: Do you have the definition of God's wilderness,
please?

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Note added at 2 hrs (2021-06-04 12:59:03 GMT)
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Peer: Yassine El Bouknify -
http://www.proz.com/profile/2787236
Comment: أعتقد أن العبارة تمثل مثال
اقتبسه الكاتب، لذلك يمكن ترجمتها
إلي (مثلا، قصة التيه الذي فرضه
الله على بني إسرائيل):
https://m.youtube.com/watch?v=EVBPwrO224M