Warning: Tread lightly when it comes to Josh Brolin’s wife Kathryn Boyd.

The "Avengers: Endgame" star wasn’t afraid to tap into his Thanos character's attitude when clapping back at an Instagram troll, who commented under his latest post of Boyd.

As Us Weekly reports, Brolin shared the black and white photo of the 32-year-old model in her underwear with his 2.8 million Instagram followers on Tuesday. He captioned the photo with a romantic quote from French-Cuban American writer Anaïs Nin.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

A post shared by Josh Brolin (@joshbrolin) on

He wrote: “I want to love you wildly. I don’t want words, but inarticulate cries, meaningless, from the bottom of my most primitive being, that flow from my belly like honey. A piercing joy, that leaves me empty, conquered, silenced.”

In response, a user questioned Brolin’s decision to share such an intimate shot of Boyd.

“Why show your wife’s body off on the internet,” the user commented. “It’s not good, God wants her to cover her body and not expose her body.”

Well, the 51-year-old didn’t take kindly to the remark. “I just spoke to God and God asked me to please ask you to shut the [expletive] up and go take a shower,” he replied.

Boyd was Brolin’s former assistant. The two began dating in 2013 and were married by September 2016. Brolin and Boyd also share 1-year-old daughter Westlyn Brolin. This is Brolin’s third marriage. He shares two other children, Trevor, 31, and Eden, 25, with his ex-wife Alice Adair.

Josh Brolin
Josh Brolin, pictured here attending the 66th Berlinale International Film Festival in Berlin, Germany on Feb. 11, 2016, has been cast as Cable in “Deadpool 2.” Pascal Le Segretain/Getty Images