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.

2418. 'Do not halt in all the plain' means he was not to linger over any one of these. This is clear from the meaning of 'a plain' as every aspect of doctrine, dealt with immediately below. What not lingering over any one of them entails will be stated at verse 26, where Lot's wife is referred to as looking back behind him. That 'a plain' in the Word means all aspects of that doctrine is clear in Jeremiah,

He who lays waste will come to every city, and no city will escape; and the valley will perish, and the plain will be destroyed. Jeremiah 48:8.

'City' stands for false doctrinal teaching, 'the plain' for all aspects of that doctrine. In John,

When the thousand years have come to an end Satan will be loosed from his prison, and will come out to deceive the nations which are at the four corners of the earth, Gog and Magog, to gather them for battle; their number is like the sand of the sea. They went up therefore over the whole plain of the earth, and surrounded the camp of the saints; but fire came down from God out of heaven and consumed them. Revelation 20:7-9.

Here 'Gog and Magog' stands for people whose worship was external devoid of internal and so had become idolatrous, 1151. 'The plain of the earth' stands for the Church's matters of doctrine which they lay waste, 'the camp of the saints' for goods that flow from love and charity. 'Consumed by fire from God out of heaven' is similar in meaning to that regarding the men of Sodom and Gomorrah, in verse 24. Also in Jeremiah 33:13 matters of doctrine regarding charity are called 'cities of the mountain' and matters of doctrine regarding faith 'cities of the plain'.