2109. A son of thirteen years. That this signifies holy remains, may be seen from the signification of “ten,” as being remains (explained above, n. 576, 1988); and from the signification of “three,” as being what is holy (see n. 720, 901). Thus the number “thirteen,” being composed of ten and three, signifies holy remains. (That numbers in the Word signify actual things, may be seen above, n. 482, 487, 488, 493, 575, 647, 648, 755, 813, 893. What the remains with man are, has been stated above, n. 468, 530, 561, 660, 1050, 1906)

813. That this signifies the last limit of the Most Ancient Church, and that “a hundred and fifty” is the last limit, and the first, cannot indeed be so well confirmed from the Word as can the more simple numbers, which are frequently occurring. And yet it is evident from the mention of the number “fifteen” (concerning which above at verse 20), which signifies so few as to be scarcely any; and this is still more the case with the number “a hundred and fifty” composed of fifteen multiplied by ten, which last signifies remains. The multiplication of a few (like the multiplication of a half, a fourth, or a tenth), makes it still less, so that at length it becomes almost none, consequently the end or last limit. The same number occurs in the following chapter (Genesis 8:3), where it is said: “the waters receded at the end of a hundred and fifty days” with the same signification.

[2] The numbers mentioned in the Word are to be understood in a sense entirely abstracted from that of the letter. They are introduced (as has been said and shown before) merely to connect together the historic series that is in the sense of the letter. Thus where “seven” occurs, it signifies what is holy, entirely apart from the times and measures with which the number is commonly joined. For the angels, who perceive the internal sense of the Word, know nothing of time and measure, still less of the number designated; and yet they understand the Word fully, when it is being read by man. When therefore a number anywhere occurs, they can have no idea of any number, but of the thing signified by the number. So here by this number they understand that it denotes the last limit of the Most Ancient Church; and in the following chapter (verse 3), that it denotes the first limit of the Ancient or new Church.