I wasn't aware that you were allowed to check in luggage for days on end in the left luggage area of the airport. (You did not mention how long your trip to TLV is...)

If I am not mistaken, Germany is also in a security alert now with their recent elections, too, so I'd think the likelihood to be even slimmer as a result.

I am not sure, but I think your only options would be to send the luggage to your local work branch in Germany and have them hang on to it or convince the hotel you're staying at after your trip to TLV to hold the luggage for you (but you'd probably need to ship it there UPS or FedEx in that case...).

I may have an overly strict idea of what's allowed in these kinds of situations, but my gut is telling me no.