So lets talk about Christians playing the lottery!
The question becomes: Is every risk a form of gambling?
A farmer plants seed, knowing the risks of drought, flood, hail, insects, or disease that could wipe out his crop.
A business buys inventory hoping customers will buy it.
An entrepreneur starts a business that may succeed or fail.
A person deposits money in a bank expecting a return.
An investor buys shares hoping a company will prosper.
All of these involve risk.
So the question becomes: Is every risk a form of gambling?
I would say no. There is a difference between productive risk and gambling.
Productive risk includes things like planting a field, starting a business, lending money, or investing in a productive company. There is uncertainty involved, but there is also work, planning, stewardship, and the creation of something useful.
Gambling is different. Gambling is a game, wagering money on an uncertain outcome that is largely determined by chance. The goal is not to produce something of value, but to profit from the outcome of the wager itself.
The difference is not risk. Risk is a part of life. The difference is between productive activity that involves risk and games of chance.
A farmer takes a risk when he plants a crop. A businessman takes a risk when he opens a store. An investor takes a risk when he commits capital. Yet most people would not call these activities gambling because they involve productive effort rather than a wager on chance.
Risk alone does not make something gambling. The question is whether the activity produces value or simply depends upon chance.