Deuteronomy 14:22-29 (New International Version)

Tithes
  22 Be sure to set aside a tenth of all that your fields produce each year. 23 Eat the tithe of your grain, new wine and oil, and the firstborn of your herds and flocks in the presence of the LORD your God at the place he will choose as a dwelling for his Name, so that you may learn to revere the LORD your God always. 24 But if that place is too distant and you have been blessed by the LORD your God and cannot carry your tithe (because the place where the LORD will choose to put his Name is so far away), 25 then exchange your tithe for silver, and take the silver with you and go to the place the LORD your God will choose. 26 Use the silver to buy whatever you like: cattle, sheep, wine or other fermented drink, or anything you wish. Then you and your household shall eat there in the presence of the LORD your God and rejoice. 27 And do not neglect the Levites living in your towns, for they have no allotment or inheritance of their own.

 28 At the end of every three years, bring all the tithes of that year's produce and store it in your towns, 29 so that the Levites (who have no allotment or inheritance of their own) and the aliens, the fatherless and the widows who live in your towns may come and eat and be satisfied, and so that the LORD your God may bless you in all the work of your hands.

Luke 16:1-13 (New International Version)

The Parable of the Shrewd Manager
  1Jesus told his disciples: "There was a rich man whose manager was accused of wasting his possessions. 2So he called him in and asked him, 'What is this I hear about you? Give an account of your management, because you cannot be manager any longer.'

 3"The manager said to himself, 'What shall I do now? My master is taking away my job. I'm not strong enough to dig, and I'm ashamed to beg— 4I know what I'll do so that, when I lose my job here, people will welcome me into their houses.'

 5"So he called in each one of his master's debtors. He asked the first, 'How much do you owe my master?'

 6" 'Eight hundred gallons[a] of olive oil,' he replied.
       "The manager told him, 'Take your bill, sit down quickly, and make it four hundred.'

 7"Then he asked the second, 'And how much do you owe?'
       " 'A thousand bushels[b] of wheat,' he replied.
       "He told him, 'Take your bill and make it eight hundred.'

 8"The master commended the dishonest manager because he had acted shrewdly. For the people of this world are more shrewd in dealing with their own kind than are the people of the light. 9I tell you, use worldly wealth to gain friends for yourselves, so that when it is gone, you will be welcomed into eternal dwellings.

 10"Whoever can be trusted with very little can also be trusted with much, and whoever is dishonest with very little will also be dishonest with much. 11So if you have not been trustworthy in handling worldly wealth, who will trust you with true riches? 12And if you have not been trustworthy with someone else's property, who will give you property of your own?

 13"No servant can serve two masters. Either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve both God and Money."