Tough Break from the Bible

I am having a hard time understanding 1 Sam 16 NAB version.

14

The spirit of the LORD had departed from Saul, and he was tormented by an evil spirit sent by the LORD.

15

So the servants of Saul said to him: "Please! An evil spirit from God is tormenting you.

16

If your lordship will order it, we, your servants here in attendance on you, will look for a man skilled in playing the harp. When the evil spirit from God comes over you, he will play and you will feel better."

17

Saul then told his servants, "Find me a skillful harpist and bring him to me."

18

A servant spoke up to say: "I have observed that one of the sons of Jesse of Bethlehem is a skillful harpist. He is also a stalwart soldier, besides being an able speaker, and handsome. Moreover, the LORD is with him."

19

Accordingly, Saul dispatched messengers to ask Jesse to send him his son David, who was with the flock.

20

Then Jesse took five loaves of bread, a skin of wine, and a kid, and sent them to Saul by his son David.

21

Thus David came to Saul and entered his service. Saul became very fond of him, made him his armor-bearer,

22

and sent Jesse the message, "Allow David to remain in my service, for he meets with my approval."

23

Whenever the spirit from God seized Saul, David would take the harp and play, and Saul would be relieved and feel better, for the evil spirit would leave him.

I know God is all powerful and even the evil one recognizes and fears His might. But could the Catholic translation have misconstrued what the author meant? Other bible versions say that it is an "ill" spirit sent by the Lord. It is a hard passage to understand.