> "you lend money to someone for example if they need to buy food, and don't have the money, because you don't want them to starve? ... Charging for interests means that you are making profit of others poverty"
Let's not confuse commerce and charity, and within commerce let's not confuse lending with usury. Charity is gifting money with no expectation of anything in return, lending is temporarily transferring money for a mutually beneficial purpose, while usury is extortionate and exploitative. I would have thought your example of a starving person would come under old fashioned charity, but if not then lending isn't necessarily unreasonable.