Matthew 10:42

Truly I tell you, whoever gives a mere drink of cold water to one of these least significant [disciples of mine] because he is a disciple, will certainly not lose his [temporal or eternal] reward."

Matthew 25:40

And the King will answer them and say, 'Truly I tell you, since you did all this for one of my least [significant] brothers, you did it for me.'

Hebrews 6:10

For God is not [so] unjust as to forget the work you are doing and the love you have shown for Him, as you ministered to the saints [i.e., His holy people] and continue to minister [to them].

Matthew 18:10

Make sure you do not look down on any one of these little ones [i.e., humble followers of Christ]. For I tell you, their angels in heaven always see the face of my Father in heaven. {[{[Some ancient manuscripts include verse

Matthew 8:5-6

And when He had arrived at Capernaum, a military officer approached Him, begging,

Matthew 18:3-6

and said, "Truly I tell you, you will never enter the kingdom of heaven unless you turn [your life around] and become like little children [i.e., having child-like humility].

Matthew 18:14

In the same way, it is not the will of your Father in heaven that [a single] one of these little ones [i.e., humble followers of Christ] should be lost.

Mark 9:41-42

Truly I tell you, whoever will give you [even] a cup of water to drink because you belong to Christ will certainly not lose his [temporal or eternal] reward.

Mark 12:42-43

A poor widow came and threw in two small copper coins [Note: These two coins each amounted to about ten minutes' worth of a farm laborer's pay, or about one dollar in 1994]. The total she gave was equivalent to a larger coin [i.e., worth twice as much].

Mark 14:7-8

You will always have poor people with you, and you can do something good for them whenever you want to, but you will not always have me with you.

Luke 6:35

But love your enemies and do good things to them; and lend to them without expecting it to be returned, and your reward [i.e., from God] will be great and you will be [considered] sons of the Highest [i.e., God]. For He is kind to unthankful and evil people [as well].

Luke 17:2

It would be good [i.e., better] for him to have had a huge millstone tied around his neck and be thrown into the ocean [Note: This "millstone" was a huge, circular stone rolled over grain to crush it and was moved by an animal walking in a circle], rather than having him cause one of these little ones [i.e., humble followers of the Lord] to be led astray [from God].

1 Corinthians 8:10-13

For if someone with a weak conscience sees you, who have [correct] knowledge [in this matter], eating in an idol's temple, will he not be encouraged to eat food sacrificed to idols?

2 Corinthians 8:12

For if the eagerness is there, [then] whatever a person has [to give] is acceptable, and not what he does not have.

2 Corinthians 9:6-15

But [remember] this: The person who plants only a few seeds will harvest a meager crop. And the one who plants many seeds [Note: The Greek says, "plants with blessings"] will harvest a bumper crop.

Philippians 4:15-19

As you Philippians also know, during the early days of [my] preaching the Gospel [in those regions], when I left Macedonia [Note: This was the northernmost province of Greece], no church shared with me in the matter of giving and receiving [i.e., financial help], except you only.

Treasury of Scripture Knowledge

Summary

And whosoever shall give to drink unto one of these little ones a cup of cold water only in the name of a disciple, verily I say unto you, he shall in no wise lose his reward.

Bible References

One

Matthew 8:5
And when He had arrived at Capernaum, a military officer approached Him, begging,
Matthew 18:3
and said, "Truly I tell you, you will never enter the kingdom of heaven unless you turn [your life around] and become like little children [i.e., having child-like humility].
Matthew 25:40
And the King will answer them and say, 'Truly I tell you, since you did all this for one of my least [significant] brothers, you did it for me.'
Mark 9:42
And whoever causes one of these little ones [i.e., humble followers of the Lord. See Matt. 18:6] who believes in me to be led astray [from God], he would have been better off to have had a huge millstone tied around his neck and thrown into the ocean [Note: This was a heavy, circular stone rolled over grain to crush it, and moved by an animal walking in a circle].
Luke 17:2
It would be good [i.e., better] for him to have had a huge millstone tied around his neck and be thrown into the ocean [Note: This "millstone" was a huge, circular stone rolled over grain to crush it and was moved by an animal walking in a circle], rather than having him cause one of these little ones [i.e., humble followers of the Lord] to be led astray [from God].
1 Corinthians 8:10
For if someone with a weak conscience sees you, who have [correct] knowledge [in this matter], eating in an idol's temple, will he not be encouraged to eat food sacrificed to idols?

A cup

Mark 9:41
Truly I tell you, whoever will give you [even] a cup of water to drink because you belong to Christ will certainly not lose his [temporal or eternal] reward.
Mark 12:42
A poor widow came and threw in two small copper coins [Note: These two coins each amounted to about ten minutes' worth of a farm laborer's pay, or about one dollar in 1994]. The total she gave was equivalent to a larger coin [i.e., worth twice as much].
Mark 14:7
You will always have poor people with you, and you can do something good for them whenever you want to, but you will not always have me with you.
2 Corinthians 8:12
For if the eagerness is there, [then] whatever a person has [to give] is acceptable, and not what he does not have.

He shall

Luke 6:35
But love your enemies and do good things to them; and lend to them without expecting it to be returned, and your reward [i.e., from God] will be great and you will be [considered] sons of the Highest [i.e., God]. For He is kind to unthankful and evil people [as well].
2 Corinthians 9:6
But [remember] this: The person who plants only a few seeds will harvest a meager crop. And the one who plants many seeds [Note: The Greek says, "plants with blessings"] will harvest a bumper crop.
Philippians 4:15
As you Philippians also know, during the early days of [my] preaching the Gospel [in those regions], when I left Macedonia [Note: This was the northernmost province of Greece], no church shared with me in the matter of giving and receiving [i.e., financial help], except you only.
Hebrews 6:10
For God is not [so] unjust as to forget the work you are doing and the love you have shown for Him, as you ministered to the saints [i.e., His holy people] and continue to minister [to them].