'The shoulder' signifies all power. In Ezekiel 29:7, this signifies the power or faculty of understanding truth. 'To dwell between his shoulders,' as in Deuteronomy 33:12, signifies being in security and power.

(Odkazy: Arcana Coelestia 1085)

6234. 'And now your two sons born to you in the land of Egypt' means goodness and truth within the natural that come from the internal. This is clear from the representation of Manasseh and Ephraim, to whom 'two sons' refers here, as the Church's will and the Church's understanding within the natural, which are born from the internal, dealt with above in 6222 (and since good belongs to the will and truth to the understanding, the Church's goodness and truth are meant by those same sons); from the meaning of 'born to you' - to Joseph - as that come from the internal; and from the meaning of 'the land of Egypt' as the natural mind where the Church's factual knowledge resides, dealt with in 5176, 5178, 5280, 5288, 5301, and as the natural, 6147.