Deuteronomy 6:4-5 (NIV2011)

Hear, O Israel: The LORD our God, the LORD is one. Love the LORD your God with all your heart and with all your soul and with all your strength.

https://www.biblegateway.com/passage/?search=Deuteronomy+6%3A4-5+&version=NIV

Leviticus 27:30 (NIV2011)

A tithe of everything from the land, whether grain from the soil or fruit from the trees, belongs to the LORD; it is holy to the LORD.

https://www.biblegateway.com/passage/?search=Leviticus+27%3A30&version=NIV

2 Corinthians 9:6-7 (NIV2011)

Remember this: Whoever sows sparingly will also reap sparingly, and whoever sows generously will also reap generously. Each of you should give what you have decided in your heart to give, not reluctantly or under compulsion, for God loves a cheerful giver. 

https://www.biblegateway.com/passage/?search=2+Corinthians+9%3A6-7&version=NIV

Generous giving demonstrates gratitude for God's blessings.

Psalm 100:4-5 (NIV2011)

Enter his gates with thanksgiving and his courts with praise; give thanks to him and praise his name.  For the LORD is good and his love endures forever; his faithfulness continues through all generations.

https://www.biblegateway.com/passage/?search=Psalm+100%3A4-5&version=NIV

1 Chronicles 16:28-29 (NIV2011)

Ascribe to the LORD, all you families of nations, ascribe to the LORD glory and strength.  Ascribe to the LORD the glory due his name; bring an offering and come before him.  Worship the LORD in the splendor of his holiness. 

https://www.biblegateway.com/passage/?search=1+Chronicles+16%3A28-29&version=NIV

Psalm 116:17 (NIV2011)

I will sacrifice a thank offering to you and call on the name of the LORD.

https://www.biblegateway.com/passage/?search=Psalm+116%3A17&version=NIV

1 John 4:9-10 (NIV2011)

This is how God showed his love among us: He sent his one and only Son into the world that we might live through him. This is love: not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins. 

https://www.biblegateway.com/passage/?search=1+John+4%3A9-10&version=NIV

Generous giving demonstrates obedience to God's commands.

John 14:15 (NIV2011)

“If you love me, keep my commands.”  

https://www.biblegateway.com/passage/?search=John+14%3A15&version=NIV

Matthew 6:24 (NIV2011)

“No one can serve two masters. Either you will hate the one and love the other, or you will be devoted to the one and despise the other. You cannot serve both God and money.” 

https://www.biblegateway.com/passage/?search=Matthew+6%3A24&version=NIV

Matthew 6:19-21 (NIV2011)

“Do not store up for yourselves treasures on earth, where moths and vermin destroy, and where thieves break in and steal. But store up for yourselves treasures in heaven, where moths and vermin do not destroy, and where thieves do not break in and steal. For where your treasure is, there your heart will be also.”    

https://www.biblegateway.com/passage/?search=Matthew+6%3A19-21&version=NIV

1 Timothy 6:9-10 (NIV2011)

Those who want to get rich fall into temptation and a trap and into many foolish and harmful desires that plunge people into ruin and destruction. For the love of money is a root of all kinds of evil. Some people, eager for money, have wandered from the faith and pierced themselves with many griefs. 

https://www.biblegateway.com/passage/?search=1+Timothy+6%3A9-10&version=NIV

Luke 12:15-21 (NIV2011)

Then he said to them, “Watch out! Be on your guard against all kinds of greed; life does not consist in an abundance of possessions.”  And he told them this parable: “The ground of a certain rich man yielded an abundant harvest. He thought to himself, ‘What shall I do?  I have no place to store my crops.’ “Then he said, ‘This is what I’ll do.  I will tear down my barns and build bigger ones, and there I will store my surplus grain. And I’ll say to myself, “You have plenty of grain laid up for many years. Take life easy; eat, drink and be merry.” ’ “But God said to him, ‘You fool!  This very night your life will be demanded from you. Then who will get what you have prepared for yourself?’ “This is how it will be with whoever stores up things for themselves but is not rich toward God.”

https://www.biblegateway.com/passage/?search=Luke+12%3A15-21&version=NIV

Generous giving demonstrates trust in God's promises. 

Matthew 6:31-33 (NIV2011)

“So do not worry, saying, ‘What shall we eat?’ or ‘What shall we drink?’ or ‘What shall we wear?’ For the pagans run after all these things, and your heavenly Father knows that you need them. But seek first his kingdom and his righteousness, and all these things will be given to you as well.” 

https://www.biblegateway.com/passage/?search=Matthew+6%3A31-33+&version=NIV

Proverbs 3:9-10 (NIV2011)

Honor the LORD with your wealth, with the firstfruits of all your crops; then your barns will be filled to overflowing, and your vats will brim over with new wine.

https://www.biblegateway.com/passage/?search=Proverbs+3%3A9-10&version=NIV

Malachi 3:8-10 (NIV2011)

“Will a mere mortal rob God? Yet you rob me. But you ask, ‘How are we robbing you?’ In tithes and offerings. You are under a curse – your whole nation – because you are robbing me. Bring the whole tithe into the storehouse, that there may be food in my house. Test me in this,” says the LORD Almighty, “and see if I will not throw open the floodgates of heaven and pour out so much blessing that there will not be room enough to store it.”    

https://www.biblegateway.com/passage/?search=Malachi+3%3A8-10&version=NIV

2 Corinthians 9:6-8 (NIV2011)

Remember this: Whoever sows sparingly will also reap sparingly, and whoever sows generously will also reap generously. Each of you should give what you have decided in your heart to give, not reluctantly or under compulsion, for God loves a cheerful giver. And God is able to bless you abundantly, so that in all things at all times, having all that you need, you will abound in every good work. 

https://www.biblegateway.com/passage/?search=2+Corinthians+9%3A6-8&version=NIV

2 Corinthians 9:10-11 (NIV2011)

Now he who supplies seed to the sower and bread for food will also supply and increase your store of seed and will enlarge the harvest of your righteousness. You will be enriched in every way so that you can be generous on every occasion, and through us your generosity will result in thanksgiving to God. 

https://www.biblegateway.com/passage/?search=2+Corinthians+9%3A10-11&version=NIV

1 Timothy 6:17-19 (NIV2011)

Command those who are rich in this present world not to be arrogant nor to put their hope in wealth, which is so uncertain, but to put their hope in God, who richly provides us with everything for our enjoyment. Command them to do good, to be rich in good deeds, and to be generous and willing to share. In this way they will lay up treasure for themselves as a firm foundation for the coming age, so that they may take hold of the life that is truly life.   

https://www.biblegateway.com/passage/?search=1+Timothy+6%3A17-19&version=NIV