The following is a quote from the website of TLV regarding transit passengers:
"" 2. Passengers in transit to a destination abroad
Passengers arriving with a foreign airline, will collect their baggage (if necessary) in the Transit Hall and will continue the transit passenger process, which is of the same as for inbound passengers arriving on Israeli airlines, and includes:
Security check in the Transit Passengers Hall
Obtaining a boarding pass for the next leg of their journey, in the Transit Hall
Transition to the Rotunda, on Level 1. Link to to the Rotunda via the Connector.
Continue to the appropriate Concourse and exit gate.""
If needed further details can be found there.
The entrance to the Transit area is on the right before you head downwards to passport contol