Justin Bieber With His Wife Hailey leaves their apartment in Brooklyn New York. Picture: Bang Showbiz

Justin and Hailey Bieber are still searching for the perfect venue for their Christian wedding party.

The high-profile couple were previously revealed to have sent out comic-book style 'Save The Date' cards for their wedding party in South Carolina on September 30, and now Justin's father-in-law, Stephen Baldwin, has revealed they are currently narrowing down where to hold their religious ceremony.

He told TMZ: "They are going to have a lot of their pastor friends and their Christian friends around them at this time.

"They are looking at a couple venues right now trying to figure out which one will be the most fun for them and memorable."

The 53-year-old actor also addressed Justin's battle with his mental health and praised him for coming on "leaps and bounds" in the past 12 months.

He said: "He's taking some more time to himself.

"Many people don't know he is quite a family man. I think he has grown leaps and bounds in the past year.

The 25-year-old singer tied the knot with 22-year-old model Hailey in an intimate ceremony at a New York courthouse in September 2018, and they can't wait to celebrate their love with the most important people in their lives.

A source said recently: "They decided in May that they would get married in September, so they have been planning for a while. Hailey works with a planner.

"They are trying to keep the wedding details quiet, but both seem very excited. They are very happy about their married life together."

Justin and Hailey have postponed their wedding celebration several times, because they were believed to be focusing on the 'Love Yourself' singer's mental health, following his decision to seek treatment for depression in February.

Earlier this week, Justin admitted he's going through a "hard season".

The 25-year-old singer took to Instagram to share a video of himself singing on stage at his church, and explained he is currently going through a difficult time, but is thankful to his wife for "being such a huge support".

He captioned the video: "Sang at church last night. God is pulling me through a hard season. Having trust in Jesus at your worst times is the absolute hardest. But he is faithful to complete what he started. 

I also want to thank my wife for being such a huge support in my life through this season.. it says in the bible count it ALL JOY when you face trials of various kinds. 

Sounds insane considering when u face trials u feel terrible. But if we are grateful and worship god for what we do have in that season there is so much power in that... whatever pain you are going through just keep telling yourself THIS WONT LAST! Love you guys we in this together (sic)"