There are no relevant search results specifically about an individual named "Khalil Jabr." The search results include information about figures with similar names, such as Gibran Khalil Gibran, Nakhla Zurayq, and others, but none pertain to Khalil Jabr directly. Therefore, I cannot provide a factual, sourced biography or summary for Khalil Jabr based on the available information. If you can provide more context or specify the field or region related to Khalil Jabr, I may be able to assist further using general knowledge.