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.

4736. 'Throw him into [this] pit in the wilderness' means that for the time being they should conceal it among their falsities, that is, that they should consider it a falsehood but nevertheless keep it because it is of importance to the Church. This is clear from the meaning of 'the pit' as falsities, dealt with above in 4728, and from the meaning of 'the wilderness' as a place where there is no truth; for 'wilderness' has a wide range of meanings. It is a place that is uninhabited and so uncultivated, and when used to refer to the Church means a place where there is no good and consequently no truth, 2708, 3900. Thus 'the pit in the wilderness' is used here to mean falsities among which no truth is present because no good is there.

[2] The expression 'no truth is present because no good is there' is used for the reason that if a person believes that faith saves without works, truth may indeed exist. Even so, it is not truth residing with him, because it does not look to good nor is it rooted in good. This truth is not a living one because it contains a false premise, and therefore when a truth of this kind exists with that person it is nothing but a falsehood based on the false premise that reigns within it. That premise may be likened to the soul from which all else has its life. On the other hand falsities can exist which are accepted as truths if good lies within them, especially if it is the good of innocence, as with gentiles and even with many within the Church.