'Sank' in the Bible

Thou didst blow with thy wind, the sea covered them: They sank as lead in the mighty waters.

And David put his hand in his bag, and took thence a stone, and slang it, and smote the Philistine in his forehead; and the stone sank into his forehead, and he fell upon his face to the earth.

(The mountains rose, the valleys sank down) Unto the place which thou hadst founded for them.

Then took they Jeremiah, and cast him into the dungeon of Malchijah the king's son, that was in the court of the guard: and they let down Jeremiah with cords. And in the dungeon there was no water, but mire; and Jeremiah sank in the mire.