(יז) וַיִּקַּ֥ח מֹשֶׁ֖ה וְאַהֲרֹ֑ן אֵ֚ת הָאֲנָשִׁ֣ים הָאֵ֔לֶּה אֲשֶׁ֥ר נִקְּב֖וּ בְּשֵׁמֽוֹת׃
(17) And Moses and Aaron took these men that are pointed out by name.
In the Hebrew, the word 'Vayikach', 'and he took' is strange. Shouldn't it be in the plural 'Vayikchu', and 'and they took', seeing as we're referring to both Moshe and Aharon?
Rather, it might be a hidden intertext- the first of two in this pasuk.
The other intertext is the third-to-last and second-to-last
(א) וַיִּקַּ֣ח קֹ֔רַח בֶּן־יִצְהָ֥ר בֶּן־קְהָ֖ת בֶּן־לֵוִ֑י וְדָתָ֨ן וַאֲבִירָ֜ם בְּנֵ֧י אֱלִיאָ֛ב וְא֥וֹן בֶּן־פֶּ֖לֶת בְּנֵ֥י רְאוּבֵֽן׃
(1) Now Korah, the son of Izhar, the son of Kohath, the son of Levi, with Dathan and Abiram, the sons of Eliab, and On, the son of Peleth, sons of Reuben, took men;
(י) וַיֵּצֵא֙ בֶּן־אִשָּׁ֣ה יִשְׂרְאֵלִ֔ית וְהוּא֙ בֶּן־אִ֣ישׁ מִצְרִ֔י בְּת֖וֹךְ בְּנֵ֣י יִשְׂרָאֵ֑ל וַיִּנָּצוּ֙ בַּֽמַּחֲנֶ֔ה בֶּ֚ן הַיִּשְׂרְאֵלִ֔ית וְאִ֖ישׁ הַיִּשְׂרְאֵלִֽי׃ (יא) וַ֠יִּקֹּב בֶּן־הָֽאִשָּׁ֨ה הַיִּשְׂרְאֵלִ֤ית אֶת־הַשֵּׁם֙ וַיְקַלֵּ֔ל וַיָּבִ֥יאוּ אֹת֖וֹ אֶל־מֹשֶׁ֑ה וְשֵׁ֥ם אִמּ֛וֹ שְׁלֹמִ֥ית בַּת־דִּבְרִ֖י לְמַטֵּה־דָֽן׃
(10) And the son of an Israelitish woman, whose father was an Egyptian, went out among the children of Israel; and the son of the Israelitish woman and a man of Israel strove together in the camp. (11) And the son of the Israelitish woman blasphemed the Name, and cursed; and they brought him unto Moses. And his mother’s name was Shelomith, the daughter of Dibri, of the tribe of Dan.
(יא) וַיְדַבֵּ֥ר יְהוָ֖ה אֶל־מֹשֶׁ֥ה לֵּאמֹֽר׃ (יב) כִּ֣י תִשָּׂ֞א אֶת־רֹ֥אשׁ בְּנֵֽי־יִשְׂרָאֵ֘ל לִפְקֻדֵיהֶם֒ וְנָ֨תְנ֜וּ אִ֣ישׁ כֹּ֧פֶר נַפְשׁ֛וֹ לַיהוָ֖ה בִּפְקֹ֣ד אֹתָ֑ם וְלֹא־יִהְיֶ֥ה בָהֶ֛ם נֶ֖גֶף בִּפְקֹ֥ד אֹתָֽם׃
(11) And the LORD spoke unto Moses, saying: (12) ’When thou takest the sum of the children of Israel, according to their number, then shall they give every man a ransom for his soul unto the LORD, when thou numberest them; that there be no plague among them, when thou numberest them.
This is the beginning of Ki Tisa. Two perakim later...