'Seed' in the Bible

And he said, So is the kingdom of God, as if a man should cast seed into the ground;

And should sleep, and rise night and day, and the seed should spring and grow up, he knoweth not how.

It is like a grain of mustard seed, which, when it is sown in the earth, is less than all the seeds that be in the earth:

Master, Moses wrote unto us, If a man's brother die, and leave his wife behind him, and leave no children, that his brother should take his wife, and raise up seed unto his brother.

Now there were seven brethren: and the first took a wife, and dying left no seed.

And the second took her, and died, neither left he any seed: and the third likewise.

And the seven had her, and left no seed: last of all the woman died also.