Exodus 18:5
JPS-1917וַיָּבֹ֞א יִתְר֨וֹ חֹתֵ֥ן מֹשֶׁ֛ה וּבָנָ֥יו וְאִשְׁתּ֖וֹ אֶל־מֹשֶׁ֑ה אֶל־הַמִּדְבָּ֗ר אֲשֶׁר־ה֛וּא חֹנֶ֥ה שָׁ֖ם הַ֥ר הָאֱלֹהִֽים׃
And Jethro, Moses’father-in-law, came with his sons and his wife unto Moses into the wilderness where he was encamped, at the mount of God;
Rashi Commentary
אל המדבר INTO THE DESERT — Indeed we know that they were in the wilderness, and it appears unnecessary to state that Jethro came to Moses there. But by stressing this Scripture is speaking in praise of Jethro: that he was living amidst all the splendour that the world could provide, and nevertheless his heart prompted him to go forth into the desert, a waste place (Mekhilta), to hearken to the words of the Torah.
Other Translations
וַיָּבֹ֞א יִתְר֨וֹ חֹתֵ֥ן מֹשֶׁ֛ה וּבָנָ֥יו וְאִשְׁתּ֖וֹ אֶל־מֹשֶׁ֑ה אֶל־הַמִּדְבָּ֗ר אֲשֶׁר־ה֛וּא חֹנֶ֥ה שָׁ֖ם הַ֥ר הָאֱלֹהִֽים׃
and Yitro, Moshe’s father in law, came, with his sons and his wife to Moshe into the wilderness, where he encamped at the mount of God: