A "field" in the Bible usually represents the Lord's church, and more specifically the desire for good within the church. It's where good things start, take root, and grow. When you have a desire to be a good person and to do good things, the natural first questions are "What does that mean?", "What should I do?", "What can I do?". You look for ideas, concepts, direction. Once you figure out something you want to do or a change you want to make in yourself, you seek specific knowledge. If you want to volunteer at a food pantry, say, you'd need to know whom to call, when they need help, where to go, what to bring. Armed with that knowhow, you're ready to get to work. That process could be compared to food production. You start with a field -- which is that desire to be good. Then you plant seeds -- those ideas and concepts. Those seeds sprout into plants -- the specific facts and knowledge needed for the task (easily seen in the food pantry example, but also true with deeper tasks like "being more tolerant of my co-workers" or "taking more time for prayer," or "consciously being a more loving spouse"). Finally, those plants produce food -- the actual good thing that you go and do. The Writings also say that in a number of cases a "field" represents the doctrine, or teachings, of the church. This sounds markedly different. The desire for good is emotional, a drive, a wanting; doctrine is a set of ideas. But for a church to be true, its doctrine must be centered on a desire for good, and must lead people toward doing what is good. So sound doctrine is actually closely bound up with the desire for good.

6690. 'That He made them houses' means that it - true factual knowledge in the natural - was arranged into a heavenly pattern. This is clear from the meaning of 'house' as the natural mind, dealt with in 4973, 5023, thus the things that compose the natural mind. But because what is said here refers to the midwives, those things are true factual knowledge in the natural, 6687. 'Making them houses' therefore means arranging that knowledge into order, and it is arranged into order when arranged into a heavenly pattern. It is not at all easy to see that these things are meant by 'making them houses' unless one knows the situation with true factual knowledge that belongs to the natural mind. Something must therefore be said briefly about this. Known facts in the natural are arranged into continuous series, one series tying in with another, so that they all hang together according to the varying relationships and close associations they have with one another. They are not unlike families and their generations; for one is born from another, and in that manner they are brought into existence. This explains why things of the mind, which are forms of good and truth, were spoken of by the ancients as 'houses', the form of good that ruled there being called the father, the truth linked to it the mother, and the derivations from them the sons, daughters, sons-in-law, daughters-in-law, and so on. But the way in which true factual knowledge in the natural is arranged varies from person to person, since the pattern it assumes is imposed on it by the ruling love. That love is at the centre and arranges each fact into position around it. It positions nearest to itself the facts most compatible with it, and the rest are arranged according to their degrees of compatibility. And in this way factual knowledge is given a pattern. If heavenly love rules, then the Lord arranges them all into a heavenly pattern, a pattern like that assumed by heaven itself, thus the pattern assumed by the good of love itself. Such is the pattern into which truths are arranged; and once arranged into it they act in unison with good. At this point when the one is stimulated by the Lord, so is the other; that is to say, when items of belief are stimulated, so are charitable desires, and vice versa. This kind of arrangement is what is meant by the statement that God made the midwives houses.