Mark 9:39

But Jesus said, "Do not tell him not to do so, for there is no one who will use my name to do a mighty act, and be able soon after to abuse me.

Matthew 7:22-23

Many will say to me on that Day, 'Lord! Lord! Was it not in your name that we prophesied, and by your name that we drove out demons, and by your name that we did many mighty acts?'

Matthew 13:28-29

He said to them, 'This is some enemy's doing.' And they said to him, 'Do you want us to go and gather them up?'

Mark 10:13-14

And people brought children to him to have him touch them, but the disciples reproved them for it.

Acts 19:13-16

Some Jews who went from place to place casting out demons tried to use the name of the Lord Jesus in the cases of people who had evil spirits in them, saying, "I command you in the name of Jesus whom Paul preaches!"

1 Corinthians 9:27

But I beat and bruise my body and make it my slave, so that after I have called others to the contest I may not be disqualified myself.

1 Corinthians 12:3

Therefore, I must tell you that no one who is speaking under the influence of the Spirit of God ever says, "Curse Jesus!" and no one can say, "Jesus is Lord!" without being under the influence of the holy Spirit.

1 Corinthians 13:1-2

I will show you a far better way. If I can speak the languages of men and even of angels, but have no love, I am only a noisy gong or a clashing cymbal.

Philippians 1:18

But what difference does it make? All that matters is that, in one way or another, from false motives or honest ones, Christ is being made known; I am glad of that. Yes, and I expect to be glad,

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 people brought children to him to have him touch them, but the disciples reproved them for it.
Matthew 13:28
He said to them, 'This is some enemy's doing.' And they said to him, 'Do you want us to go and gather them up?'
Philippians 1:18
But what difference does it make? All that matters is that, in one way or another, from false motives or honest ones, Christ is being made known; I am glad of that. Yes, and I expect to be glad,

There

Matthew 7:22
Many will say to me on that Day, 'Lord! Lord! Was it not in your name that we prophesied, and by your name that we drove out demons, and by your name that we did many mighty acts?'
Acts 19:13
Some Jews who went from place to place casting out demons tried to use the name of the Lord Jesus in the cases of people who had evil spirits in them, saying, "I command you in the name of Jesus whom Paul preaches!"
1 Corinthians 9:27
But I beat and bruise my body and make it my slave, so that after I have called others to the contest I may not be disqualified myself.
1 Corinthians 13:1
I will show you a far better way. If I can speak the languages of men and even of angels, but have no love, I am only a noisy gong or a clashing cymbal.

Lightly

1 Corinthians 12:3
Therefore, I must tell you that no one who is speaking under the influence of the Spirit of God ever says, "Curse Jesus!" and no one can say, "Jesus is Lord!" without being under the influence of the holy Spirit.

General references

2 Corinthians 13:8
For I cannot do anything against the truth, but only for it.