Bieber posted a series of photos of the baptism on his Instagram that show him and Baldwin in the water, holding hands with someone who appears to be a priest.
Bieber captioned it:
"The moment @haileybieber my wife and I got baptized together! This was one of most special moments of my life. Confessing our love and trust in Jesus publicly with our friends and family."
Both were raised as Christians, and wanted to celebrate the rite as a married couple.