The Brooklyn-born rabbi injured in Saturday’s San Diego synagogue shooting maintains deep roots in the borough, family and friends told The Post on Sunday.

Rabbi Yisroel Goldstein, 57, was raised in the Borough of Kings and attended Rabbinical College of America in Morristown, NJ, before striking out to start a congregation in San Diego at the age of 22.

The rabbi now returns to the East Coast “very often” for holidays and family celebrations, according to his sister-in-law, Chana Goldstein.

“He just married off his daughter here. He is an emissary, so he comes here. He likes to come for as many relatives weddings, bar mitzvahs as he can,” said the Crown Heights relative.

“When he comes, he lights up our house. Three weeks ago, he sat at our table, regaled us with some wonderful stories of Torah inspirations. He’s a very good speaker. Very heartfelt. He brings good cake.”

Rabbi Goldstein lost a finger in the attack — then went on to shepherd children out of the building, wrapping them in his own prayer shawl.

“He showed real mesiras nefesh — self-sacrifice — in the fact that he was ready to confront the guy and fight,” Rabbi Shea Hecht, 64, of Crown Heights told The Post.

Hecht was Goldstein’s summer-camp counselor roughly 48 years ago when the younger rabbi was coming up in Brooklyn.

“When he’s in a good mood, he still calls me ‘Counselor,’ ” Hecht joked.

Goldstein himself has called for renewed faith in light of the horrific attacks, which left one dead and three injured.

“That’s what the Lubavitcher Rebbe has taught me,” Goldstein told The Post on Sunday, referring to his time in Brooklyn studying under religious figure Menachem Mendel Schneerson.

During an interview Goldstein gave to CNN Sunday, host Brian Stelter remarked about how calm the rabbi sounded given the harrowing experience — prompting the rabbi to respond without missing a beat: “That’s ’cause I’m from Brooklyn.”