Hello and welcome to the forum. I'm sorry about your concerns and fears. The marker is there for a reason though and will not prevent your entrance to Heaven or any other consequence like this. It is there so that when you have your next mammogram, they can see where the previous issue was to monitor it. It's not a chip but a marker for diagnostic reasons and it can save your life. It's not a 'chip' but a clip. Tiny and only there to note the spot for radiologists going forward. https://www.cancer.org/cancer/breast-cancer/screening-tests-and-early-detection/breast-biopsy/core-needle-biopsy-of-the-breast.html
I hope this helps.