Deuteronomy 1:41

ותהינו — This is an expression derived from the word הננו in (Numbers 14:40) "Here we are (הננו) and we will go up to the place”. This is the expression which you uttered — the expression הן, "yes”. The word, therefore, means as much as: you expressed your readiness to go up into the mountain.

וַֽתַּעֲנ֣וּ ׀ וַתֹּאמְר֣וּ אֵלַ֗י חָטָ֘אנוּ֮ לַיהֹוָה֒ אֲנַ֤חְנוּ נַעֲלֶה֙ וְנִלְחַ֔מְנוּ כְּכֹ֥ל אֲשֶׁר־צִוָּ֖נוּ יְהֹוָ֣ה אֱלֹהֵ֑ינוּ וַֽתַּחְגְּר֗וּ אִ֚ישׁ אֶת־כְּלֵ֣י מִלְחַמְתּ֔וֹ וַתָּהִ֖ינוּ לַעֲלֹ֥ת הָהָֽרָה׃

Then you answered and said to me, We have sinned against the Lord, we will go up and fight, according to all that the Lord our God commanded us. And you girded on every man his weapons of war, and ventured to go up into the hill.