It's philosophical:
> The issues stem from [a lawsuit](https://www.militarytimes.com/news/pentagon-congress/2022/02... ) filed in the U.S. District Court for the Middle District of Florida late last year alleging servicemembers’ rights are being infringed upon by the COVID vaccine mandate because their religious beliefs prevent them from taking the vaccine.
From that link in the quote:
> “Through much prayer and reflection, Plaintiffs have sought wisdom, understanding, and guidance on the proper decisions to make concerning these COVID-19 vaccines, and Plaintiffs have been convicted by the Holy Spirit that accepting any of the three currently available vaccines is against the teachings of Scripture and would be a sin,” according to a Florida lawsuit first filed in late 2021, then amended on Feb. 7 with additional plaintiffs.