What does 1 Samuel 17:34 mean?

And David said unto Saul, Thy servant was keeping his father’s sheep; and when there came a lion, or a bear, and took a lamb out of the flock,

And David said unto Saul, Thy servant kept his father’s sheep, and there came a lion, and a bear, and took a lamb out of the flock:

And David said unto Saul, Thy servant was keeping his father’s sheep; and when there came a lion, or a bear, and took a lamb out of the flock,

And David said to Saul, Your servant has been keeper of his father's sheep; and if a lion or a bear came and took a lamb from the flock,

And David saith unto Saul, `A shepherd hath thy servant been to his father among the sheep, and the lion hath come--and the bear--and hath taken away a sheep out of the drove,

And David said to Saul: Thy servant kept his father's sheep, and there came a lion, or a bear, and took a ram out of the midst of the flock:

And David said to Saul, Thy servant fed his father's sheep, and there came a lion, and also a bear, and took a lamb out of the flock.