863. 'Noah opened the window of the ark which he had made means a further state when the truths of faith appeared to him. This becomes clear from the final words of the previous verse, which state that 'the tops of the mountains appeared'. It becomes clear from the meaning of those words, and also from the meaning of 'a window', dealt with already in 655, as that which constitutes the understanding part of the mind, or what consequently amounts to the same, the truth of faith. It becomes clear too from the fact that this is the first glimmer of light. The same observation made already about that which constitutes the understanding part, namely the truth of faith, being meant by 'a window must be made here. It is this: No truth of faith can possibly exist unless it originates in good stemming from love or charity, just as nothing that truly constitutes the understanding exists unless it comes from the will. Take away the will and no understanding exists, as shown several times already. Take away charity therefore and no faith exists. But because man's will is nothing else than evil desire the Lord has miraculously taken steps to prevent that which constitutes the understanding part, which is the truth of faith, being immersed in his evil desire, and has separated the understanding part of man's mind from the will part by means of a certain go-between, namely conscience, to which charity is added by the Lord. Without this miraculous provision nobody could ever have been saved.

813. That these words mean the point at which the Most Ancient Church finally came to an end, and that 'a hundred and fifty' means that which is both a finishing point and a starting point, cannot be confirmed so easily from the Word as the more simple numbers can which occur frequently. Nevertheless the matter is clear from the number fifteen, dealt with above at verse 20. Fifteen means so few as to be hardly any. This meaning applies all the more to the number 'a hundred and fifty', which is the product of fifteen multiplied by ten, which means remnants. Multiplying fractions, such as a half, a quarter, or a tenth, produces smaller fractions still, till at length there is practically nothing, and then the end or finishing point has been reached. The same number occurs in Chapter 8:3 below where it is said that the waters retreated at the end of a hundred and fifty days. There the meaning is similar. Numbers in the Word have to be understood abstractedly - quite apart from the sense of the letter, for as stated and shown already, they have been included merely to produce the flow of historical events that belongs to the sense of the letter. For example, when seven occurs it means that which is holy - quite abstractedly from periods of time or measurements which it is normally used to quantify. Indeed angels, who perceive the internal sense of the Word, know nothing whatever about periods of time or measurements, let alone what a specific number denotes. Yet they understand the Word completely when it is being read by man. Consequently when a number occurs anywhere at all they cannot possibly have the idea of any numerical value, only of the real thing meant by the number. Likewise in the present context they understand by this number the point at which the Most Ancient Church finally came to an end, and in verse 3 of the next chapter the starting point of the Ancient or new Church.