Put a roast in a crock pot with warm liquid went to work for five hours came home was not turned on if I put it on high will it be ok to eat?

It's not safe to eat the roast if it sat in warm liquid for five hours without being cooked. The USDA recommends that perishable foods should not be left at temperatures between 40°F and 140°F for more than two hours, as this can promote bacterial growth. Even if you turn the crock pot on high now, the meat may not be safe to consume. It's best to discard it to avoid the risk of foodborne illness.