And if he lets his voice be heard, then immediately: (Gen. 4:7)... sin crouches at the entrance... And not only that, but he is of little faith. And not for nought did the earlier sages establish: ‘those who raise their voice in prayer are of little faith’.xxxixBT Berakhot 24b
At that time: when the blessed Holy One unites with His Shekhinah, all the ḥayot receive blessings one from the other, and all are in holiness (qedushah).
And thus, they the sages enacted rites of ‘consecration’ (qiddushin) and blessings for a bride, corresponding to the blessing, and the holiness, and the unity, of the blessed Holy One.