372. When the good and the true are united in an angel or in one of us, they are not two entities but one, since the good then follows from the true and the true from the good. This union is like the one that occurs when we think what we intend and intend what we think. Then our thought and our intention form a unity; the thought forms or presents in a form what our volition intends, and our volition gives it its appeal. This is also why two spouses in heaven are not called two angels, but one.

Again, this is the meaning of the Lord's words,

Have you not read that the One who made them from the beginning made them male and female and said, "For this reason a man shall leave his father and mother and cling to his wife, and the two will become one flesh." So they are no longer two, but are one flesh. What God has united, let no one sever. Not everyone accepts this word, only those to whom it is given. (Matthew 19:4-6, 11; Mark 10:6-9; Genesis 2:24)

Here we have a description of the heavenly marriage angels are in and at the same time the marriage of the good and the true. "Let no one sever what God has united" means that the good is not to be severed from the true.

In Genesis 19:37; 21:26; 30:32; 40:7; Matthew 6:30; Luke 12:28, this signifies the perpetuity and eternity of a state. (Arcana Coelestia 2838)

In Psalm 2:7, this signifies in time; for with Jehovah the future is present. (True Christian Religion 101)

The expression 'even to this day' or 'today' sometimes appears in the Word, as in Genesis 19:37-38, 22:14, 26:33, 32:32, 35:20, and 47:26. In a historical sense, these expressions have respect to the time when Moses lived, but in an internal sense, 'this day' and 'today' signify the perpetuity and eternity of a state. 'Day' denotes state, and likewise 'today,' which is the current time. Anything related to time in the world is eternal in heaven, and to represent this, 'today' or 'to this day' is added. Although, in the historical sense, this appears as if the expressions only have a literal meaning, just like it says in other parts of the Word, such as Joshua 4:9, 6:25, 7:20, Judges 1:21, 26, etc. 'Today' means something perpetual and eternal in Psalms 2:7, 119:89-91, Jeremiah 1:5, 10, 18, Deuteronomy 29:9-14, Numbers 28:3, 23, Daniel 8:13, 11:31, 12:11, Exodus 16:4, 19, 20, 23, John 6:31, 32, 49, 50, 58, Matthew 6:11, and Luke 11:3.

(Odkazy: Arcana Coelestia 2838 [1-4], Genesis 47:26)