Mark 9:41

Whoever will give you a cup of water to drink in my name, because you are Christ's, most assuredly I tell you, he will in no way lose his reward.

Matthew 10:42

And whoever gives a drink of cold water to one of these little ones because he is a disciple, truly, I say to you, he will not lose his reward.

Matthew 25:40

The King will answer: 'To the extent that you did it to one of the least of my brothers, you did it to me.'

John 19:25-27

His mother stood by the stake of Jesus, and his mother's sister, Mary the wife of Clopas, and Mary Magdalene.

Romans 8:9

But you are not in flesh but in Spirit, if indeed God's Spirit dwells in you. If any one does not have the Spirit of Christ he does not belong to him.

Romans 14:15

If because of your food your brother is grieved, you do not walk in love. Do not allow what you eat to destroy the one for whom Christ died.

1 Corinthians 3:23

And you belong to Christ and Christ belongs to God.

1 Corinthians 15:23

Everyone will be raised to life in the right order: Christ the first fruits and afterward those who belong to Christ at the time of his coming.

2 Corinthians 10:7

You look at the things that are before you. If any man trusts in himself that he is Christ's, let him consider this again within himself that, even as he is Christ's, so also are we.

Galatians 3:29

If you are Christ's, then you are Abraham's seed, heirs according to promise.

Galatians 5:24

Those who belong to Christ Jesus have impaled the flesh with its passions and lusts.

Treasury of Scripture Knowledge

Summary

For whosoever shall give you a cup of water to drink in my name, because ye belong to Christ, verily I say unto you, he shall not lose his reward.

Bible References

Whosoever

Matthew 10:42
And whoever gives a drink of cold water to one of these little ones because he is a disciple, truly, I say to you, he will not lose his reward.
Matthew 25:40
The King will answer: 'To the extent that you did it to one of the least of my brothers, you did it to me.'

Because

John 19:25
His mother stood by the stake of Jesus, and his mother's sister, Mary the wife of Clopas, and Mary Magdalene.
Romans 8:9
But you are not in flesh but in Spirit, if indeed God's Spirit dwells in you. If any one does not have the Spirit of Christ he does not belong to him.
Romans 14:15
If because of your food your brother is grieved, you do not walk in love. Do not allow what you eat to destroy the one for whom Christ died.
1 Corinthians 3:23
And you belong to Christ and Christ belongs to God.
1 Corinthians 15:23
Everyone will be raised to life in the right order: Christ the first fruits and afterward those who belong to Christ at the time of his coming.
2 Corinthians 10:7
You look at the things that are before you. If any man trusts in himself that he is Christ's, let him consider this again within himself that, even as he is Christ's, so also are we.
Galatians 3:29
If you are Christ's, then you are Abraham's seed, heirs according to promise.
Galatians 5:24
Those who belong to Christ Jesus have impaled the flesh with its passions and lusts.