I don't have to; you have to provide good sources to back up your claim. If I say that god exists, and then claim that the bible proves is, well, I'm not proving my point because I haven't yet given any solid evidence to my claims. This is how a debate works when your arguing like a rational adult.
And, for the record, CNN/NYT/et al. are also biased, but they're (usually) more factually based. Bias is not the same as factually incorrect; bias is reflected in which stories you choose to report, and what language you use in reporting. And example of a source that would be both unbiased and highly factual would be Reuters News Service, or the Christian Science Monitor. Similarly, Jabocin is strongly left-biased, but also highly factual.
Three of the sources you cited are not credible because they continually play fast and loose with facts and don't bother verifying information. One of them was unsourced entirely, and the backup you provide is not in English--or based in the US--which makes determining the veracity difficult.