'Servest' in the Bible

Then the king commanded, and they brought Daniel, and cast him into the den of lions. The king spoke and said unto Daniel, Thy God whom thou servest continually, he will save thee.

And when he came near unto the den, he cried with a mournful voice unto Daniel: the king spoke and said unto Daniel, O Daniel, servant of the living God, hath thy God whom thou servest continually been able to save thee from the lions?