Babysitter Needed for my Children - Full-time / Part-time

We are in need of a caregiver for our 5-year-old autistic son during our church services on Sunday. I pastor a local church, which means my wife has many responsibilities on Sunday. We need someone one-on-one with him that can take him to his classes, sit with him, and walk him around (if necessary). We start service at 10:00 a.m. and end a little after 12pm, and then start at 6:00 p.m. and finish up around 7:15 p.m.