There is a "Priority Line". Business class passengers of some (but maybe not all) airlines operating from AMS would have access to the Priority Line. You should verify with your check-in agent whether El Al pays for Priority access for their Business Class customers at AMS. There is no mention on the generic page discussing El Al's business class regardin business class customers having priority access at any airport.

Your Star Alliance Gold status would only grant you access to the Priority line if you were travelling on a Star Alliance flight, and you entered the relevant *A number while checking in. The priority line has a barcode scanner, and if your barcode doesn't indicate that access is granted (either by being in Business Class on an airline that grants access, or by having the relevant status in an FFP which is compatible with the airline for which you are flying) then the gate won't open.