Deuteronomy 15:10

By all means you must give to him, and {you must not be discontented} at your giving to him, because on account of this [very] thing, Yahweh your God will bless you in all your work and {in all that you undertake}.

Deuteronomy 14:29

And [so] the Levite may come, because there is no plot of ground for him or an inheritance with you, and the alien [also may come] and the orphan and the widow that [are] in your {towns}, and {they may eat their fill}, so that Yahweh your God may bless you in all [of] the work of your hand that you undertake."

Deuteronomy 24:19

"When you reap your harvest in your field and you forget a sheaf in the field, you shall not return to get it, for it shall be for the alien, for the orphan, and for the widow, so that Yahweh your God may bless you in all the work of your hands.

Proverbs 22:9

He [who] {is generous} will be blessed, for he gives to the poor from his [own] bread.

Deuteronomy 14:19

And [also] all [of] {the winged insects}; they [are] unclean for you; you shall not eat [them].

Deuteronomy 15:4

Nevertheless, there shall not be among you a poor [person], because Yahweh will certainly bless you in the land that Yahweh your God [is] giving to you [as] an inheritance, to take possession of it.

Psalm 41:1-2

Blessed [is the one who] has regard for [the] poor; in [the] day of disaster, Yahweh delivers him.

Proverbs 11:24-25

There is one who gives yet {grows richer}, but he who withholds {what is right} only [finds] need.

Isaiah 32:8

But [the] nobleman plans noble things, and he stands upon noble things.

Isaiah 58:10

if you offer your soul to the hungry, and you satisfy [the] appetite of [the] afflicted, then your light shall rise in the darkness, and your darkness [will be] like noon.

Matthew 25:40

And the king will answer [and] say to them, 'Truly I say to you, in as much as you did [it] to one of the least of these brothers of mine, you did [it] to me.'

Acts 20:35

I have shown you [with respect to] all [things] that [by] working hard in this way it is necessary to help those who are in need, and to remember the words of the Lord Jesus that he himself said, "It is more blessed to give than to receive."

Romans 12:8

if [it is] one who exhorts, by exhortation; one who gives, with sincerity; one who leads, with diligence; one who shows mercy, with cheerfulness.

2 Corinthians 9:5-11

Therefore I considered [it] necessary to urge the brothers that they should go on ahead to you and make arrangements in advance for your generous gift that was promised previously, so this would be prepared as a generous gift and not as grudgingly granted.

Philippians 4:18-19

But I have received everything [in full] and have an abundance; {I am well supplied} [because] I received from Epaphroditus {what you had sent}, a fragrant offering, an acceptable sacrifice, well-pleasing to God.

1 Timothy 6:18-19

to do good, to be rich in good works, to be generous, sharing freely,

Hebrews 13:16

And do not neglect doing good and generosity, for God is pleased with such sacrifices.

1 Peter 4:11

If anyone speaks, [let it be] as the oracles of God; if anyone serves, [let it be] as by the strength that God provides, so that in all [things] God will be glorified through Jesus Christ, to whom is the glory and the power {forever and ever}. Amen.

Treasury of Scripture Knowledge

Summary

Thou shalt surely give him, and thine heart shall not be grieved when thou givest unto him: because that for this thing the LORD thy God shall bless thee in all thy works, and in all that thou puttest thine hand unto.

General references

Bible References

Thine heart

Matthew 25:40
And the king will answer [and] say to them, 'Truly I say to you, in as much as you did [it] to one of the least of these brothers of mine, you did [it] to me.'
Acts 20:35
I have shown you [with respect to] all [things] that [by] working hard in this way it is necessary to help those who are in need, and to remember the words of the Lord Jesus that he himself said, "It is more blessed to give than to receive."
Romans 12:8
if [it is] one who exhorts, by exhortation; one who gives, with sincerity; one who leads, with diligence; one who shows mercy, with cheerfulness.
2 Corinthians 9:5
Therefore I considered [it] necessary to urge the brothers that they should go on ahead to you and make arrangements in advance for your generous gift that was promised previously, so this would be prepared as a generous gift and not as grudgingly granted.
1 Timothy 6:18
to do good, to be rich in good works, to be generous, sharing freely,
1 Peter 4:11
If anyone speaks, [let it be] as the oracles of God; if anyone serves, [let it be] as by the strength that God provides, so that in all [things] God will be glorified through Jesus Christ, to whom is the glory and the power {forever and ever}. Amen.

Because

Deuteronomy 15:4
Nevertheless, there shall not be among you a poor [person], because Yahweh will certainly bless you in the land that Yahweh your God [is] giving to you [as] an inheritance, to take possession of it.
Deuteronomy 14:19
And [also] all [of] {the winged insects}; they [are] unclean for you; you shall not eat [them].
Deuteronomy 24:19
"When you reap your harvest in your field and you forget a sheaf in the field, you shall not return to get it, for it shall be for the alien, for the orphan, and for the widow, so that Yahweh your God may bless you in all the work of your hands.
Psalm 41:1
Blessed [is the one who] has regard for [the] poor; in [the] day of disaster, Yahweh delivers him.
Proverbs 11:24
There is one who gives yet {grows richer}, but he who withholds {what is right} only [finds] need.
Proverbs 22:9
He [who] {is generous} will be blessed, for he gives to the poor from his [own] bread.
Isaiah 32:8
But [the] nobleman plans noble things, and he stands upon noble things.
Isaiah 58:10
if you offer your soul to the hungry, and you satisfy [the] appetite of [the] afflicted, then your light shall rise in the darkness, and your darkness [will be] like noon.
2 Corinthians 9:8
And God is able to cause all grace to abound to you, so that in everything at all times, [because you] have enough of everything, you may overflow in every good work.
Philippians 4:18
But I have received everything [in full] and have an abundance; {I am well supplied} [because] I received from Epaphroditus {what you had sent}, a fragrant offering, an acceptable sacrifice, well-pleasing to God.
Hebrews 13:16
And do not neglect doing good and generosity, for God is pleased with such sacrifices.

General references

Luke 6:34
And if you lend [to those] from whom you expect to receive [back], what kind of credit is [that] to you? Even sinners lend to sinners, so that they may get back an equal [amount]!