וַיֹּ֨אמְר֜וּ כָּל־הָעָ֧ם אֲשֶׁר־בַּשַּׁ֛עַר וְהַזְּקֵנִ֖ים עֵדִ֑ים יִתֵּן֩ יְהוָ֨ה אֶֽת־הָאִשָּׁ֜ה הַבָּאָ֣ה אֶל־בֵּיתֶ֗ךָ כְּרָחֵ֤ל ׀ וּכְלֵאָה֙ אֲשֶׁ֨ר בָּנ֤וּ שְׁתֵּיהֶם֙ אֶת־בֵּ֣ית יִשְׂרָאֵ֔ל וַעֲשֵׂה־חַ֣יִל בְּאֶפְרָ֔תָה וּקְרָא־שֵׁ֖ם בְּבֵ֥ית לָֽחֶם׃
И все люди, которые были в воротах, и старейшины сказали: 'Мы свидетели. Господь сделает женщину, которая вошла в дом твой, как Рахиль и как Лия, которые построили дом Израилев; и делай достойно в Ефрате и будь знаменит в Вифлееме;
Tractate Kallah
A Kallah is forbidden to her husband without Birchas Chasanim in the same manner as a Niddah. Just as a Niddah who has not immersed [In Mikva] is forbidden to her husband, so likewise is a Kallah forbidden to her husband without the [marriage] brachah. From where do we know Birchas Chasanim is derived from the Torah? As it said, “And they blessed Rivkah...” (Bereshis 24:60). From where do we derive that even a widow is forbidden? As it is said, “He then took ten elders of the city…Then all the people who were at the gate, said, [we are] witnesses!...May HASHEM make the woman...May your house be like the house of Peretz...” (Rus 4:11-12, 2).