Deuteronomy 15:10

thou dost certainly give to him, and thy heart is not sad in thy giving to him, for because of this thing doth Jehovah thy God bless thee in all thy works, and in every putting forth of thy hand;

Deuteronomy 14:29

and come in hath the Levite (for he hath no part and inheritance with thee), and the sojourner, and the fatherless, and the widow, who are within thy gates, and they have eaten, and been satisfied, so that Jehovah thy God doth bless thee in all the work of thy hand which thou dost.

Deuteronomy 24:19

'When thou reapest thy harvest in thy field, and hast forgotten a sheaf in a field, thou dost not turn back to take it; to the sojourner, to the fatherless, and to the widow, it is; so that Jehovah thy God doth bless thee in all the work of thy hands.

Proverbs 22:9

The good of eye -- he is blessed, For he hath given of his bread to the poor.

Deuteronomy 14:19

and every teeming thing which is flying, unclean it is to you; they are not eaten;

Deuteronomy 15:4

only when there is no needy one with thee, for Jehovah doth greatly bless thee in the land which Jehovah thy God is giving to thee -- an inheritance to possess it.

Psalm 41:1-2

To the Overseer. -- A Psalm of David. O the happiness of him Who is acting wisely unto the poor, In a day of evil doth Jehovah deliver him.

Proverbs 11:24-25

There is who is scattering, and yet is increased, And who is keeping back from uprightness, only to want.

Isaiah 32:8

And the noble counselled noble things, And he for noble things riseth up.

Isaiah 58:10

And dost bring out to the hungry thy soul, And the afflicted soul dost satisfy, Then risen in the darkness hath thy light, And thy thick darkness is as noon.

Matthew 25:40

And the king answering, shall say to them, Verily I say to you, Inasmuch as ye did it to one of these my brethren -- the least -- to me ye did it.

Acts 20:35

all things I did shew you, that, thus labouring, it behoveth us to partake with the ailing, to be mindful also of the words of the Lord Jesus, that he himself said, It is more blessed to give than to receive.'

Romans 12:8

or he who is exhorting -- 'In the exhortation!' he who is sharing -- 'In simplicity!' he who is leading -- 'In diligence?' he who is doing kindness -- 'In cheerfulness.'

2 Corinthians 9:5-11

Necessary, therefore, I thought it to exhort the brethren, that they may go before to you, and may make up before your formerly announced blessing, that this be ready, as a blessing, and not as covetousness.

Philippians 4:18-19

and I have all things, and abound; I am filled, having received from Epaphroditus the things from you -- an odour of a sweet smell -- a sacrifice acceptable, well-pleasing to God:

1 Timothy 6:18-19

to do good, to be rich in good works, to be ready to impart, willing to communicate,

Hebrews 13:16

and of doing good, and of fellowship, be not forgetful, for with such sacrifices God is well-pleased.

1 Peter 4:11

if any one doth speak -- 'as oracles of God;' if any one doth minister -- 'as of the ability which God doth supply;' that in all things God may be glorified through Jesus Christ, to whom is the glory and the power -- to the ages of the ages. 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 answering, shall say to them, Verily I say to you, Inasmuch as ye did it to one of these my brethren -- the least -- to me ye did it.
Acts 20:35
all things I did shew you, that, thus labouring, it behoveth us to partake with the ailing, to be mindful also of the words of the Lord Jesus, that he himself said, It is more blessed to give than to receive.'
Romans 12:8
or he who is exhorting -- 'In the exhortation!' he who is sharing -- 'In simplicity!' he who is leading -- 'In diligence?' he who is doing kindness -- 'In cheerfulness.'
2 Corinthians 9:5
Necessary, therefore, I thought it to exhort the brethren, that they may go before to you, and may make up before your formerly announced blessing, that this be ready, as a blessing, and not as covetousness.
1 Timothy 6:18
to do good, to be rich in good works, to be ready to impart, willing to communicate,
1 Peter 4:11
if any one doth speak -- 'as oracles of God;' if any one doth minister -- 'as of the ability which God doth supply;' that in all things God may be glorified through Jesus Christ, to whom is the glory and the power -- to the ages of the ages. Amen.

Because

Deuteronomy 15:4
only when there is no needy one with thee, for Jehovah doth greatly bless thee in the land which Jehovah thy God is giving to thee -- an inheritance to possess it.
Deuteronomy 14:19
and every teeming thing which is flying, unclean it is to you; they are not eaten;
Deuteronomy 24:19
'When thou reapest thy harvest in thy field, and hast forgotten a sheaf in a field, thou dost not turn back to take it; to the sojourner, to the fatherless, and to the widow, it is; so that Jehovah thy God doth bless thee in all the work of thy hands.
Psalm 41:1
To the Overseer. -- A Psalm of David. O the happiness of him Who is acting wisely unto the poor, In a day of evil doth Jehovah deliver him.
Proverbs 11:24
There is who is scattering, and yet is increased, And who is keeping back from uprightness, only to want.
Proverbs 22:9
The good of eye -- he is blessed, For he hath given of his bread to the poor.
Isaiah 32:8
And the noble counselled noble things, And he for noble things riseth up.
Isaiah 58:10
And dost bring out to the hungry thy soul, And the afflicted soul dost satisfy, Then risen in the darkness hath thy light, And thy thick darkness is as noon.
2 Corinthians 9:8
and God is able all grace to cause to abound to you, that in every thing always all sufficiency having, ye may abound to every good work,
Philippians 4:18
and I have all things, and abound; I am filled, having received from Epaphroditus the things from you -- an odour of a sweet smell -- a sacrifice acceptable, well-pleasing to God:
Hebrews 13:16
and of doing good, and of fellowship, be not forgetful, for with such sacrifices God is well-pleased.

General references

Luke 6:34
and if ye lend to those of whom ye hope to receive back, what grace have ye? for also the sinful lend to sinners -- that they may receive again as much.