I worked for a Christian charity that has changed its policy in 2020, now moving from charity to mission. While I strongly supported the charity causes of said institution I do not see myself as a promoter of a specific worldview, no matter how much I personally respect them. So I decided to quit by end of this year.
Now I have been there for less than two years (the shift was not planned yet when I started and I had planned to stay for far longer than this). So I need to explain somehow why I am looking for a new challenge already after so short time.
I wish to be honest but I do not know how to put it best. My current version reads like this (think of it as the final paragraph of my covering letter):
I am leaving my current position on my own accord. Our institution's focus has shifted in 2020 from charity and developement aid to promoting a specific religion. While I respect these values as an individual (as also many other religions') I do not see myself in the role of an active promoter of a specific worldview thus I decided to look for a new challenge in a more worldview-neutral environment.
I still have great respect for the institution and I am on good terms with my former boss who would even be willing to serve as a reference and has given me a great letter. So I do not want to be aggressive in any way against my former employer and not sound in any way frustrated about this shift (which I am not, it's just not "my thing").
How would you explain to somebody outside of a specific religion that you are leaving for such a reason?