Gossip is about person wants deliberately to cause bad feeling between another two people by telling them what they (had said / said / say ) about eachother .Gossip is considered to be evil. In Islam, gossip is regarded as a sin and is forbidden (as / because )it spreads bad feelings and distrust amongst people , that is why we should ( stay away from / avoid ) people who spread rumors and speak badly of others . We should always remember that not to gossip is one of the ways to enter paradise .

Please , correct the mistakes and tell me what do you prefer from the words between the brackets !!
sembra naturale?

I'll fix the little mistakes here and there, but overall, I can understand your meaning.
"Gossip is about people wanting to deliberately cause bad feelings between people by telling them what they might (or might not) have said about eachother. Gossip is considered to be evil. In Islam, gossip is regarded as a sin and is forbidden. It spreads bad feelings of distrust amongst people, so we should avoid people who spread rumors and speak badly of others. We should always remember that only telling the truth is one of the ways to enter paradise."
You originally wrote it fairly well. The best advice I have is to read your phrasing out loud to try and detect run-on sentences, and make sure you watch out for past-tense and present-tense words such as 'wants deliberately' should be 'wanting to deliberately'. Overall, good job and good luck!