Earth" is a general word that can be thought of as a container for other more specific words, as ground, field, or garden. Each of these means a person in an ascending series as that person learns truths from the Bible, thinks about them, and tries to apply them to life. The series represents the way of becoming good and wise. "Earth" and "ground" are terms that can go either way, as in the parable of the sower (Matthew 13:4-8) there was both good ground and bad ground, but "field" and "garden" mean minds that are regenerating towards good. "Earth" in the Bible can mean a person or a group of like-minded people as in a church. But it refers specifically to the external of the person's mind, or of the general thought of the group. If heaven and earth are mentioned together, then both the internals and externals of the mind are meant – something to note when reading the creation story.

In Revelation the word "earth" is used both as a ground level as we use it in its natural sense and also as the sense of a group. The action in this book takes place in the great middle zone of the spiritual world, where people first go and where they are sorted out. There are both evil people and good there, and sometimes at the end of a church the evil can have great influence before a great judgment comes. This level of the spiritual realm is called the "earth" to which the dragon was cast down (Revelation 12:9) and to which the stars fell (Revelation 12:4). The "earth" that swallowed the dragon’s flood means those still-sincere people within the church who discounted the flood of the dragon's falsities (Revelation 12:15).

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.