https://www.jta.org/archive/ben-gurion-reveals-suggestion-of-north-vietnams-communist-leader
https://www.jta.org/2014/11/02/culture/from-the-archive-israels-friend-in-hanoi
https://richardpollock.substack.com/p/two-unlikely-national-liberation (pro-Israel blog)
This seems kind of disappointing.
My guess is that like Stalin, he supported anything to weaken the British Empire.