הִנֵּֽה־רִבְקָ֥ה לְפָנֶ֖יךָ קַ֣ח וָלֵ֑ךְ וּתְהִ֤י אִשָּׁה֙ לְבֶן־אֲדֹנֶ֔יךָ כַּאֲשֶׁ֖ר דִּבֶּ֥ר יְהוָֽה׃
Eis que Rebeca está diante de ti, toma-a e vai-te; seja ela a mulher do filho de teu SENHOR, como tem dito o SENHOR.
Sforno on Genesis
Take her and go. Since it is Hashem’s will, you are able to take her even without our permission.
Radak on Genesis
הנה.. כאשר דבר, for He has arranged everything in accordance with your request.
Sforno on Genesis
As Hashem has spoken. Hashem declares who a person will marry and in this case He has given a clear sign of what He has decreed.