SPOKANE, Wash. -

The devil made her do it; that's why Destiny Ahenakew said she tossed her 15-month-old son down a 50-foot embankment over the weekend.

The toddler is okay, with nothing more than a few scrapes, but his mom is in jail facing assault charges and a mental health evaluation which could ultimately change what she's charged with.

Ahenakew, 25, sat calmly Monday afternoon as she made her first court appearance and was read the charges she is facing for the incident Saturday afternoon.

According to court documents Ronald Munden was painting a house on West Mission when Ahenawkew walked up and asked for some water. He watched her go outside to the back patio where she opened the Bible and started to pray. Then, moments later, he witnessed her pick up her son, swing him in the air twice and toss him over the fence.

At that moment Felix Paul and his three kids were walking by and heard Munden calling for help.

goes, 'There's a mother in the back patio, back deck area that threw her baby over the embankment,'” Paul said.

The child tumbled about 50 feet down the embankment before hitting a tree.

“You look down this steep embankment where the baby was and the baby was lying there, crying, wearing a diaper and a little tee shirt,” Paul said.

Paul clambered up the steep embankment and rescued the toddler.

“Luckily the child was not significantly hurt, CPS has taken custody of the child and the child is safe,” Spokane Police Lieutenant Mark Griffiths

Meanwhile, Ahenakew remained motionless, just sitting on the patio until police arrived.

“It's gut wrenching to see somebody that could do that to their own kid. The kid is a helpless little child,” Paul said.

Both Paul and Munden said Monday it was an 'Act of the Lord' that the toddler is alive.

“If it wasn't for the painter I don't think that baby would have made it, down there in the heat that long,” Paul said of Munden's actions.

Spokane police are investigating what would cause Ahenakew to do this to her son.

his is very, very unusual. For a mother to do that to her child is extremely unusual,” Griffiths said.

She was already wanted on a bench warrant for failing to appear on a stolen vehicle charge.

Ahenakew has been charged with first degree assault and is being held on a $50,000 bond, but the charge could change depending on the results of police investigating and a mental evaluation.

She is not allowed to have contact with her son, who is in the custody of Child Protective Services.