What does Les say about the number of people descended from Abraham over the 4,000 years since the covenant promise?

Over the 4,000 years since the covenant promise, though Israel has been a small nation, tremendous numbers of people have come out of Abraham through Isaac and Jacob. God compared that seed to the dust of the earth, too numerous to count.

Les explains that God enlarged the covenant promise in Genesis 13:16, saying Abraham’s offspring would be as the dust of the earth—if a man could number the dust, then his seed could also be numbered. This pointed to a great offspring through Isaac and Jacob, the nation of Israel. Les notes that over 4,000 years, even though they have been a small nation, tremendous numbers of people have come out of this covenant promise.

Genesis 13:16

And I will make thy seed as the dust of the earth: so that if a man can number the dust of the earth, then shall thy seed also be numbered.

What does the promise that Abraham's seed would be like the dust of the earth mean?

It signifies that Abraham’s offspring would be a vast multitude, too numerous to count, specifically through Isaac and Jacob, forming the nation of Israel. The imagery emphasizes the tremendous number of descendants produced from this covenant promise over more than 4,000 years.