What is the origin of the idiom "put one's head on the block" and when to use it?

The idiom "put one's head on the block" can be traced back to the practice of beheading as a form of execution. In the past, a person condemned to death by beheading would be made to kneel or lie down on a block or chopping board, with their neck positioned over a wooden or metal block. The executioner would then use a sword or axe to sever the person's head from their body. It is commonly used in business or political contexts, where taking a bold or controversial stance can have significant implications for one's career or reputation.