The Christian parents of a 10-month-old girl who died of malnutrition and dehydration in western Michigan after they allegedly refused to get medical help for religious reasons face life in jail.

Seth Welch and Tatiana Fusari, both 27, were charged with felony murder and first-degree child abuse on Monday over the death of their daughter, Mary, on Thursday.

In incredible footage filmed in a Kent County court, Welch stared at the judge with his mouth wide open as she read out the charges, while Fusari burst into tears.

Seth Welch and Tatiana Fusari, both 27, were charged with felony murder and first-degree child abuse on Monday over the death of their daughter, Mary, on Thursday. Welch stared at the with his mouth wide open as she read out the charges, while Fusari burst into tears

First responders found Mary (pictured in an undated Facebook photo) with sunken eyes and cheeks after Welch called 911 to say he had found the child dead in her crib

First responders found Mary with sunken eyes and cheeks after Welch called 911 to say he had found the child dead in her crib. An autopsy on Friday ruled her cause of death as malnutrition and dehydration due to neglect by adult caregivers.

Welch and Fusari, who also shares her husband's surname, were brought in for questioning where they admitted to noticing their daughter was skinny and underweight as early as a month before her death.

The parents, from Cedar Springs, did not seek medical help 'for fear of having Child Protective Services called, lack of faith and trust in medical services and religious reasons', according to court documents.

Welch has posted about CPS, a distrust of doctors and his religious beliefs on Facebook in often rambling videos. He spoke in one about refusing to get his children vaccinated because 'God is sovereign over disease'.

Fusari and Welch (left and right) were brought in for questioning where they admitted to noticing their daughter was skinny and underweight as early as a month before her death.

He also dismissed doctors as 'priesthoods of the medical cult'.

Welch posted on Facebook about his child's death on the same day. 'Heart is about shattered right now,' he wrote.

'Woke up to Mary dead in her bed this morning - this evening had our children removed and placed on “no contact” because Tati and I are the worst parents ever - Thankfully they are with grandma and grandpa.

An autopsy on Friday ruled Mary's cause of death as malnutrition and dehydration due to neglect by adult caregivers. She is pictured in an undated Facebook photo

'Just numb inside right now. And I'm really enjoying the loving embrace of an isolation cell from the cops and government employees who keep assuring me "they are only here to help."'

Welch advertised his beliefs on hand-painted signs nailed to trees and on the fence out front on his home. 'Repent. Believe. Obey,' one message painted in white read, according to WOOD-TV.

He wrote on Facebook that someone called officials about him when he initially refused to get his oldest daughter vaccinated.

'It didn't seem smart that you would be saving people who weren't the fittest,' he said in a video. 'If evolution believes in survival of the fittest, why are we vaccinating everybody? Shouldn't we just let the weak die off and let the strong survive?'

His two other children, including Mary, were not vaccinated.

Welch and Fusari have two older children together, ages 2 and 4.

Fusari and Welch have two older children together, ages 2 and 4. Child Protective Services filed on Monday a neglect case against the parents involving their two eldest children

Child Protective Services filed on Monday a neglect case against the parents involving their two eldest children. Fusari is also believed to be pregnant with a fourth child.

The parents are being held without bond and court records do not list lawyers who can speak on their behalf.

The couple could face life in prison without parole, if convicted of felony murder. They are back in court on August 20.