'There's' in the Bible

After this, Elijah told Ahab, "Get up and have something to eat and drink, because there's the sound of a coming rainstorm."

Then he said to his servant, “Go up and look toward the sea.”So he went up, looked, and said, “There’s nothing.”Seven times Elijah said, “Go back.”

On the seventh time, he reported, “There’s a cloud as small as a man’s hand coming from the sea.”Then Elijah said, “Go and tell Ahab, ‘Get your chariot ready and go down so the rain doesn’t stop you.’”