Two more unusual examples between Judaism and Sikhism; traditionally it is understood that Abraham (as the first leader of the path that became Judaism), kept his tent open on four sides so that travelers (in the spiritual and physical sense), would have easy access to his hospitality.

Additionally, a recent book called "Created Equal" by Joshua Berman (Oxford U. Press), chronicles the profound paradigm shift towards political egalitarianism and equality that was initiated by the composition of the people Israel and the text of Torah (an essay appears below, so people can make comparisons to Guru Nanak's teachings, the formation of Sikh Sangat - and their similarly-amazing incongruity with their social and political setting);
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/judaism/17453-jews-sikhs-how-similar-can-we.html

http://createdequalthebook.com/Publi.../Azure%202.pdf