An ISIS member from Texas said he joined the terror group simply out of curiosity — and wasn’t repelled by their brutality because in his home state, “they like to execute people, too.”

“I wanted to go see exactly what the group was about, and what they were doing,” Warren Christopher Clark, 34, who spent more than three years teaching English for the terror group, told NBC News.

“Of course I saw the videos. I think with the beheadings, that’s execution. I’m from the United States, from Texas. They like to execute people, too,” the Muslim convert said. “So I really don’t see any difference. They might do it off camera, but it’s the same.”

The former substitute teacher from Sugar Land, Texas, was captured by US-backed Kurdish forces during the campaign to liberate the last pockets occupied by ISIS in Syria.

He said he never fought alongside ISIS and that he was detained by the jihadists almost a dozen times for refusing to take up arms.

Clark’s resume was found at a house in Iraq and was later obtained by the Program on Extremism at George Washington University, NBC News reported last year.

He wrote in a cover letter that he hoped to land a job teaching English to students in territory seized by ISIS.

“I was born and raised in the United States and have always loved teaching others and learning from others as well,” he wrote, using the alias Abu Muhammad al-Ameriki.

“My work background is largely in English and I consider working at the University of Mosul to be a great way of continuing my career,” the letter said.

Researchers were able to determine that Abu Muhammad al-Ameriki was Clark, a graduate of the University of Houston.

“I was in living in Mosul at the time, and I needed a way to support myself,” Clark told NBC, adding that he was drawn to ISIS out of curiosity.

“I wanted to learn more about the ideology. I’m a political science major, global business minor. I like politics. I like travel, world events. That’s what I wanted to do,” he said.

Clark said he spent most of his time in Syria living in a mosque while the fighting raged around him.

“It was a place that was constantly being bombed,” he said. “You were always on edge. Day and night, just bombs and airstrikes. You sleep in the middle of the day. I spent most of my time living in a mosque. I just remember every day hoping not to get bombed.”