Pair of doves, a pair from the heavens/ lovebirds
In the question: The children of a married couple live in love and harmony, and without quarrels.
(Modern Hebrew. According to the Midrash: "The Holy One, Blessed be He, sits and arranges couples")
Translation
Expression (Hebrew)
זוּג יוֹנִים, זוּג מִן הַשָּׁמַיִם
Definition (Hebrew)
בְּהַשְׁאָלָה: בְּנֵי זוּג הַחַיִּים בְּאַהֲבָה וְהַתְאָמָה וּלְלֹא מְרִיבוֹת.
(הָעִבְרִית הַחֲדָשָׁה. עַל פִּי הַמִּדְרָשׁ "הקב"ה יוֹשֵׁב וּמִזְזוֹג זִוּוּגִים")