Ephraim was the second son born to Joseph in Egypt and was, along with his older brother Manasseh, elevated by Jacob to the same status as Joseph’s brothers. Thus when the tribes of Israel are named, Ephraim and Manasseh are named as patriarchs along with their uncles – Reuben, Simeon, Levi, Judah, Dan, Naphtali, Gad, Asher, Issachar, Zebulun and Benjamin -- but Joseph is not. According to Swedenborg, Ephraim represents the intellectual aspect of the church, the part that explores and understands what is true – especially the true ideas that can be drawn from the Bible. Manasseh, meanwhile, represents the affectional aspect of the church, the part that feels and loves and cares. This plays into the best-known story of Ephraim’s life. When Jacob was old and nearing death, Joseph brought his two sons to be blessed. He presented Manasseh to Jacob’s right hand as the elder, and Ephraim to Jacob’s left hand. But Jacob crossed his hands and gave Ephraim the primary blessing. According to Swedenborg, Manasseh was the elder son because ultimately, what we love makes us who we are; our loves form our lives. So our loves are the most central, leading aspect of our human existence, with our intellect playing a secondary role. But as we develop, we need to reverse those. We can use our intellect to understand what is good and right and force ourselves to do it, even when our desires are for what’s selfish. If we stick to that out of a determination to follow the Lord and be good people, the Lord will eventually remove the selfishness from our hearts so we can truly love what is good. By having Jacob bless Ephraim above Manasseh, the Lord is telling us that we have to put our intellect first to pursue our spiritual journey.

617. 14:3 They sang as it were a new song before the throne, before the four living creatures, and before the elders. This symbolizes a celebration and glorification of the Lord in His presence and in the presence of the angels of the higher heavens.

Their singing a new song symbolizes an acknowledgment and glorification of the Lord as being the only Judge, Redeemer, and Savior, thus God of heaven and earth, as may be seen in no. 279 above. Before the throne means in the Lord's presence, because He alone sits upon the throne. Before the four living creatures and before the elders means in the presence of the angels of the higher heavens (no. 369).

As it were a new song symbolizes a celebration and glorification of the Lord in the New Christian Heaven. Here specifically it means that He was acknowledged as God of heaven and earth, as He is acknowledged in the ancient heavens. This is entailed in the phrase "as it were," for "as it were a new song" means that it was seemingly new, when in fact it was not new.

We have already said before that the new heaven spoken of in Revelation 21:1 is a new heaven formed of Christians, that the prior heavens were formed of ancient peoples and most ancient ones, and that in those heavens the Lord is acknowledged as God of heaven and earth.