Why won't my horse accept the bit?

Could you please elaborate on why your horse seems to be resistant to accepting the bit? Is it a recent behavior, or has it been an ongoing issue? Have you tried different types of bits or adjustments to see if that makes a difference? Additionally, are there any signs of discomfort or pain that could be contributing to this behavior? It's important to address the root cause of the issue to ensure the horse's health and well-being, and potentially consult with a veterinarian or equine behaviorist if necessary.