Bring forth abundantly in the earth, and be ye multiplied therein. (Genesis 9:7) That this signifies increase of good and truth in the external man, which is the earth; and that "to bring forth abundantly" is predicated of goods, and "to be multiplied" of truths.
Nothing is multiplied with the regenerate man in his external man, that is, nothing of good and truth receives increase, except as the effect of charity. Charity is like heat in the time of spring or summer, which causes grass and plants and trees to grow. Without charity, or spiritual heat, nothing grows, and for this reason it is here said in the first place, "Bring forth abundantly in the earth" which is predicated of the goods that are of charity, by means of which there is multiplication of good and truth. Anyone may understand how this is; for nothing is increased and multiplied in man unless there be some affection -
for it is the delight of the affection that causes it not only to take root, but also to increase, and everything depends upon the influence of the affection.
What a man loves he freely learns, retains, and cherishes - thus all things that favor any affection.
Those which do not favor, the man cares nothing for, regards as nothing, and even rejects.
But such as the affection is, such is the multiplication.
With the regenerate man the affection is that of good and truth from the charity that is given by the Lord. Whatever therefore favors that affection of charity he learns, retains, and cherishes, and thus confirms himself in goods and truths. This is signified by, "Bring forth abundantly in the earth and be ye multiplied therein."
To show that the multiplication is such as is the affection, take for example a man who accepts the principle that faith alone saves even if he does no work of charity, that is, even if he has no charity, and who thus separates faith from charity - not only on account of this principle received from childhood, but also because he supposes that if one should call the works of charity, or charity itself, an essential part of faith, and should on this account live aright, he could not but place merit in works, though this is a false supposition. Thus he rejects charity and makes the works of charity of no account, abiding only in the idea of faith, which is no faith without its essential, namely, charity. In confirming this principle in himself, he does it not at all from the affection of good, but from the affection of pleasure, that he may live in the indulgence of his cupidities. And anyone belonging to this class of people who confirms faith alone by many things, does so not from any affection of truth, but for his own glory, that he may seem greater, more learned, and more exalted than others, and may thus take a high place among those in wealth and honor; thus he does it from the delight of the affection, and this delight causes the multiplication of the confirmatory things; for, as has been said, such as the affection is, such is the multiplication.
In general, when the principle is false, nothing but falsities can follow from it; for all things conform themselves to the first principle.Indeed those who confirm themselves in such principles about faith alone, and are in no charity, care nothing for, and are as if they did not see, all that the Lord said so many times about love and charity.
(To confirm this from the Letter of the Word see: Matt. 3:8-9; 5:7, 43-48; 6:12, 15; 7:1-20; 9:13; 12:33; 13:8, 23; 18:21-23 and to the end; 19:19; 21:34, 40-41, 43; 22:34-39; 24:12-13; 25:34 40, 41, 45; Mark 4:18-20; 11:13-14, 20; 12:28-35; Luke 3:8-9; 6:27-39, 43-49; 7:47; 8:8, 14-15; 10:25-28; 12:58-59; 13:6-10; John 3:19, 21; 5:42; 13:34-35; 14:14-15, 20-21, 23; 15:1-19; 21:15-17).