Leviticus 20:21

וְעֶרְוַת אֲחוֹת אִמְּךָ וַאֲחוֹת אָבִיךָ לֹא תְגַלֵּה כִּי אֶת־שְׁאֵרוֹ הֶעֱרָה עֲוֺנָם יִשָּֽׂאוּ

And thou shalt not uncover the nakedness of thy mother’s sister, nor of thy father’s sister; for he hath made naked his near kin; they shall bear their iniquity.

וְאִישׁ אֲשֶׁר יִשְׁכַּב אֶת־דֹּדָתוֹ עֶרְוַת דֹּדוֹ גִּלָּה חֶטְאָם יִשָּׂאוּ עֲרִירִים יָמֻֽתוּ

And if a man shall lie with his uncle’s wife—he hath uncovered his uncle’s nakedness—they shall bear their sin; they shall die childless.

וּשְׁמַרְתֶּם אֶת־כָּל־חֻקֹּתַי וְאֶת־כָּל־מִשְׁפָּטַי וַעֲשִׂיתֶם אֹתָם וְלֹא־תָקִיא אֶתְכֶם הָאָרֶץ אֲשֶׁר אֲנִי מֵבִיא אֶתְכֶם שָׁמָּה לָשֶׁבֶת בָּֽהּ

Ye shall therefore keep all My statutes, and all Mine ordinances, and do them, that the land, whither I bring you to dwell therein, vomit you not out.

וְלֹא תֵֽלְכוּ בְּחֻקֹּת הַגּוֹי אֲשֶׁר־אֲנִי מְשַׁלֵּחַ מִפְּנֵיכֶם כִּי אֶת־כָּל־אֵלֶּה עָשׂוּ וָאָקֻץ בָּֽם

And ye shall not walk in the customs of the nation, which I am casting out before you; for they did all these things, and therefore I abhorred them.