For unto everyone that hath shall be given, and he shall have abundance; but from him that hath not shall be taken away even that which he hath—Matthew 25:29
The more you have the more you get - i.e. what you have makes it easier to get even more, which builds on top of what you already have. This is why habits and personal development compound. This leads to the Pareto distribution in many areas.
Some more examples:
The more you know, the faster you learn
Winning before leads to winning again
The better your reputation, the more in-demand you will be, the better quality of work you will get, the more visibility you will get, and the better your reputation will be - it becomes easier to build an even better reputation