Another word on the verse: Eim (Ps. 68:14) ∞mother if you will lie down... – this is Higher ‘Mother’ (imma), which is the Sabbath prayer – whom the ‘lips’ are required to receive on the eve of Sabbath, for She is ‘the soul of all life’ (nishmat) kol ḥaiy, She descends upon ‘the head of the righteous’, – which is the seventh day.
(Is. 50:4)... a tongue of studies they call it, and She resides upon it ‘between the two lips’, which are Netzaḥ and Hod.
And the Sabbath is the mouth [Var. pataḥ or petaḥ∞opening ], which is opened on the Sabbath eve, to receive Her with this prayer of the Sabbath.