NET
15 Then Saul sent the messengers back to see David, saying, “Bring him up to me on his bed so I can kill him.”
Darby
15 And Saul sent the messengers to see David, saying, Bring him up to me in the bed, that I may put him to death.
KJV
15 And Saul sent the messengers [again] to see David, saying, Bring him up to me in the bed, that I may slay him.