Is the new testament infallible?
Unfortunately there is some Jewish influence within Jesus' Bible, take Luke for example who also wrote Acts. In Acts 7:8; Luke wrote about how God gave Abraham the covenant of circumcisions and how Abraham started it with his child from the age of eight days old. A baby wets themselves so could you imagine the pain a baby goes through when they wet the wound, it would be immense agony. It would really sting a lot. Wouldn't it?
In 1 Corinthians 7:18-19; it is written circumcisions does nothing to the believer and you don't need to have them. Does it not make more sense that circumcisions did not come from Jah? Isn't it a strange thing to do if not a medical emergency? A little cut hurts, so cutting off skin is definitely going to hurt.
In Acts Luke also mentions God gave a vision to kill and eat an animal. This goes against the commandment 'thou shall not kill' so Jah wouldn't have said it.
If you're reading something that sounds Jewish, ignore it. Once Jesus left earth the apostles were guessing some things.
