Serena Williamsis known for wearing several different hats as a tennis phenom, businesswoman, wife, and mother.

But one thing thatfans may not know about heris her life as a Jehovah’s Witness.

I have a really strong foundation.

Serena Williams smiling at 2024 Olympics

That’s how I was raised."

And now, she is even passing along the traditions of Jehovah’s Witnesses to her daughters and husband.

“Olympia doesn’t celebrate birthdays,” the former athlete revealed (perPeople).

Serena Williams with her family

“We’re Jehovah’s Witnesses, so we don’t do that.”

Serena and her husband Alexis Ohanian also welcomed another daughter, Adira River Ohanian, in 2023.

While the idea may be shocking to some, that is a standard practice amongst devout Jehovah’s Witnesses.

Serena Williams posing at 2024 Olympics

Those in the faith typically refrain from religious holidays and other celebrations, including Easter and Christmas.

The idea of no celebrations is something that Serena’s husband Alexis seems to be on board with.

Serena expressed in a 2017 interview withVoguethat her then-fiance was open and curious about the religion.

He puts my needs first."

But the time away from tennis also appeared to have reignited her faith as a Jehovah’s Witness.

Just mild, respectful applause for the momentous occasion.