The narrative does not make it certain whether the lion and the bear came on one and the same, or on two different occasions. If it was on one occasion, the probability would be that the bear, having seized a lamb and carrying it off, a lion appeared to dispute the prize with the bear, or with David after he had taken it from the bear, and that David killed first one and then the other.
Related Commentaries of 1 Samuel 17:34
1 Samuel 17:34
34 And David said unto Saul, Thy servant kept his father's sheep, and there came a lion, and a bear, and took a lambi out of the flock: