To build something generally means to put together a variety of simpler pieces to make a useful and more complex structure, as to build a house out of wood or bricks, and it is commonly used this way in the Word. In the land of Shinar men wished to build a tower, and in the new testament Jesus advised that a wise man should build his house on a rock. But in a representative sense the meaning is to build a mental and spiritual structure, like the doctrine of a church or the individual concepts of spiritual reality in a single mind. The building materials are representative also. The tower of Babel was built of brick, which is man-made rock, or representatively, man-made "truths", that is"truths" not from God but ideas of spiritual reality thought out by men. The house that the wise man would build was founded on a natural or "God-made" rock, which means a truth from the Word.

1610. That 'I will make your seed as the dust of the earth' means being multiplied beyond measure is clear without explanation. Here it is said that his seed would be made as 'the dust of the earth', in other parts of the Word as 'the dust of the sea', and in yet other parts as 'the stars of heaven'. Each of these phrases has its own particular meaning. 'Dust of the earth' has regard to those things that are celestial, for, as shown already, 'the earth' means the celestial aspect of love; 'dust of the sea' has regard to those things that are spiritual, for 'the sea', as has also been shown, means the spiritual aspect of love; while 'as the stars of heaven' means both but in a higher degree. And because these things cannot be numbered they therefore became common expressions to describe growth and multiplication beyond measure.

[2] The statement that his seed, that is, the faith that is the expression of love, or simply love, was to be multiplied beyond measure means in the highest sense the Lord, and in particular His Human Essence, for the Lord as regards the Human Essence is called 'the seed of the woman', dealt with in 256. When the Lord's Human Essence is meant, the infinite celestial and spiritual is understood by the words 'multiplied beyond measure'; but when faith that is the expression of charity, or simply charity, among the human race is meant by 'the seed', the multiplication without measure of that seed in everyone who leads a charitable life is understood. Such multiplication takes place in the next life with everyone who leads a charitable life. With him the multiplication of charity and of the faith deriving from it, together with their associated happiness, is so great that one can only describe it as being beyond measure and defying description. When the human race is meant by 'the seed', the multiplication of this in the Lord's kingdom is also beyond measure - not only from those who are inside the Church, and their children, but also from those who are outside the Church, and their children. Consequently the Lord's kingdom or heaven is boundless. That boundlessness will in the Lord's Divine mercy be spoken of elsewhere.