Mark 9:39

But Jesus said, Forbid him not: for there is no one, that worketh a miracle in my name, and can presently speak evil of me:

Matthew 7:22-23

many will say to me in that day, Lord, Lord, have we not prophesied in thy name, and in thy name have cast out devils, and in thy name have wrought many miracles? and I will then declare unto them,

Matthew 13:28-29

And he said unto them, Some enemy hath done this. The servants therefore said unto him, Wilt thou then that we go and gather them up?

Mark 10:13-14

And they brought to Him little children that He might touch them: and the disciples rebuked those that brought them.

Acts 19:13-16

Then some of the vagabond Jews, exorcists, took upon them to name the name of the Lord Jesus over those that had evil spirits, saying, "We adjure you by Jesus, whom Paul preacheth."

1 Corinthians 9:27

but I mortify my body and bring it into subjection, least after having preached to others, I myself should be rejected.

1 Corinthians 12:3

I must acquaint you, that no one speaking by the Spirit of God, calleth Jesus a curse: and no one can say that Jesus is the Lord, but by the holy Ghost.

1 Corinthians 13:1-2

For if I speak with the tongues of men and angels, and have not charity, I am but as sounding brass, or a tinkling cymbal.

Philippians 1:18

What then? yet every way, whether in pretence or in truth, Christ is preached: and in this I rejoice, yea and I will rejoice;

Treasury of Scripture Knowledge

Summary

But Jesus said, Forbid him not: for there is no man which shall do a miracle in my name, that can lightly speak evil of me.

General references

Bible References

Forbid

Mark 10:13
And they brought to Him little children that He might touch them: and the disciples rebuked those that brought them.
Matthew 13:28
And he said unto them, Some enemy hath done this. The servants therefore said unto him, Wilt thou then that we go and gather them up?
Philippians 1:18
What then? yet every way, whether in pretence or in truth, Christ is preached: and in this I rejoice, yea and I will rejoice;

There

Matthew 7:22
many will say to me in that day, Lord, Lord, have we not prophesied in thy name, and in thy name have cast out devils, and in thy name have wrought many miracles? and I will then declare unto them,
Acts 19:13
Then some of the vagabond Jews, exorcists, took upon them to name the name of the Lord Jesus over those that had evil spirits, saying, "We adjure you by Jesus, whom Paul preacheth."
1 Corinthians 9:27
but I mortify my body and bring it into subjection, least after having preached to others, I myself should be rejected.
1 Corinthians 13:1
For if I speak with the tongues of men and angels, and have not charity, I am but as sounding brass, or a tinkling cymbal.

Lightly

1 Corinthians 12:3
I must acquaint you, that no one speaking by the Spirit of God, calleth Jesus a curse: and no one can say that Jesus is the Lord, but by the holy Ghost.

General references

2 Corinthians 13:8
For we can do nothing against the truth, but for the truth.