Here are the possible solutions for david had him slain in the bible clue
Answer
Clue
Relevancy
uriah
Clue
David had him slain, in the Bible
David had him killed, in the Bible
abel
Clue
He was slain by someone whose name rhymes with "slain"
Slain sibling in the Bible
neko
Clue
Rocker Case who tweeted "If a dude called me a 'cougar' I'd be more likely to kill him bare-handed and shit him out in front of his parents than fuck him"