In the farewell letter Mr Cameron wrote: “We should be proud of the strong ties that have been fostered between our two countries in recent years.
“From our trade, which has doubled in a decade and is now worth £5 billion a year, to the world-leading partnerships between our scientists, academics and hi-tech specialists.
“We have reaped the rewards of our shared commitment to driving the growth of hi-tech start-ups.
“As you return to Israel now, I wish you, Zehava and all your family every success in all your future endeavours. You will be greatly missed.”