1609. Genesis 13:16. "And I will make your seed like the dust of the earth, in that if anyone can count the dust of the earth, your seed too will be counted."

I will make your seed like the dust of the earth means multiplying beyond measure. In that if anyone can count the dust of the earth, your seed too will be counted, means a positive assertion.

256. Not only faith is called "the seed of a woman;" the Lord himself is so called as well. This is partly because he alone gives us faith, so that he alone is faith. It is also because he chose to be born and in fact to be born into a religion that had sunk all the way down into a hellish, diabolical kind of selfhood, through self-love and materialism. He was born in order to unite his divinely heavenlike selfhood to a human one, in the context of his human nature, by the use of his divine power, so that they could become one inside him. Had he not united them, the world would have ended in total destruction.

Because the woman's seed is the Lord, then, the text refers to it as "he," not "it."