The number "two" has two different meanings in the Bible. In most cases "two" indicates a joining together or unification. This is easy to see if we consider the conflicts we tend to have between our "hearts" and our "heads" -- between what we want and what we know. Our "hearts" tell us that we want pie with ice cream for dinner; our "heads" tell us we should have grilled chicken and salad. If we can bring those two together and actually want what's good for us, we'll be pretty happy. We're built that way -- with our emotions balanced against our intellect -- because the Lord is built that way. His essence is love itself, or Divine Love, the source of all caring, emotion and energy. It is expressed as Divine Wisdom, which gives form to that love and puts it to work, and is the source of all knowledge and reasoning. In His case the two aspects are always in conjunction, always in harmony. It's easy also to see how that duality is reflected throughout creation: plants and animals, food and drink, silver and gold. Most importantly, it's reflected in the two genders, with women representing love and men representing wisdom. That's the underlying reason why conjunction in marriage is such a holy thing. So when "two" is used in the Bible to indicate some sort of pairing or unity, it means a joining together. In rare cases, however, "two" is used more purely as a number. In these cases it stands for a profane or unholy state that comes before a holy one. This is because "three" represents a state of holiness and completion (Jesus, for instance, rose from the tomb on the third day), and "two" represents the state just before it.

1250. That 'the mountain of the east' means charity, indeed charity from the Lord, is clear from the meaning of 'a mountain' in the Word as love to the Lord and charity towards the neighbour, as shown already in 795. And that 'the east' means the Lord, and consequently the celestial things of love and charity, see again what has appeared already in 101, and also in the following places: In Ezekiel,

The cherubs lifted up their wings. The glory of Jehovah went up from over the midst of the city and stood upon the mountain, which is on the east of the city. Ezekiel 11:22-23.

Here 'the mountain which is on the east' means nothing other than the celestial manifestation of the love and the charity that is the Lord's, for it is said that 'the glory of Jehovah stood there'. In the same prophet,

He brought me to the gate, to the gate facing the way of the east. And behold, the glory of the God of Israel came from the way of the east. Ezekiel 43:1-2.

Here 'the east' has a similar meaning.

[2] In the same prophet,

And he brought me back by the way of the outer gate of the sanctuary, which faces the east, and it was shut. And Jehovah said to me, This gate shall be shut and not opened, and no man shall enter by it; but Jehovah, the God of Israel, will enter by it. Ezekiel 44:1-2.

Here similarly 'the east' stands for the celestial manifestation of the love that is the Lord's alone. In the same prophet,

When the prince makes a freewill offering, a burnt offering, and peace offerings, as a freewill offering to Jehovah, one shall open for him the gate facing towards the east, and he shall make his burnt offering and his peace offerings, as he shall do on the sabbath day Ezekiel 46:12.

Here similarly it stands for that which is celestial, which essentially is love to the Lord.

[3] In the same prophet,

He brought me back to the door of the house, and behold, waters were issuing out from below the threshold of the house towards the east, for the house faced east. Ezekiel 47:1, 8.

This refers to the new Jerusalem 'The east' stands for the Lord, and so for the celestial manifestation of love, while 'waters' means things that are spiritual. Here the same is meant by 'the mountain of the east'. Furthermore those who dwelt in Syria were called 'the sons of the east', who will in the Lord's Divine mercy be spoken of later on.