After 44 years in the pulpit at Hendon Reform Synagogue - and more recently, at the merged Edgware and Hendon Reform congregation - Rabbi Steven Katz retired on Shabbat.
Before a packed congregation, bolstered by many former HRS members, he spoke with pride about his lengthy service to the shul, which was founded by his father, Rabbi Dr Arthur Katz.
He joined Hendon as associate rabbi, taking the lead role after his father was involved in a serious road accident.
Rabbi Katz said he had learned from his teachers - but even more from his congregants - how to be a better Jew and make Judaism relevant to contemporary society.