Luke 11:20

But, if I drive out evil spirits by the finger of God [i.e., by God's direct, supernatural intervention], then [that is evidence that] the kingdom of God has come into your midst [i.e., by my presence and ministry].

Matthew 3:2

"You must repent [i.e., change your hearts and lives], for the kingdom of heaven will soon be here."

Matthew 12:28

But if I drive out evil spirits by [the power of] the Holy Spirit, then [that is evidence that] the kingdom of God has come into your midst [i.e., by my presence and ministry].

Luke 10:9

and heal the sick people who live there. Say to them, 'The kingdom of God has come near to you.'

Luke 10:11

We are wiping off even the dust of your city that has stuck to our feet [in protest] against you. Yet you should know this, that the kingdom of God has come near [to you].'

Acts 20:25

Now look, I know that none of you, among whom I traveled on preaching missions, will ever see my face again.

Acts 28:23-28

And when they had arranged a day, large numbers of people came to Paul's house. He explained [everything to them], testifying from morning until evening concerning the kingdom of God and concerning [the Messiahship of] Jesus, both from the law of Moses and from [the writings of] the prophets.

2 Thessalonians 1:5

The way you are faithfully enduring [such] suffering for the kingdom of God is clear evidence that God's judgment is right in [eventually] counting you worthy of it [i.e., of entering the eternal phase of the kingdom].

Treasury of Scripture Knowledge

Summary

But if I with the finger of God cast out devils, no doubt the kingdom of God is come upon you.

Bible References

The kingdom

Acts 20:25
Now look, I know that none of you, among whom I traveled on preaching missions, will ever see my face again.
Acts 28:23
And when they had arranged a day, large numbers of people came to Paul's house. He explained [everything to them], testifying from morning until evening concerning the kingdom of God and concerning [the Messiahship of] Jesus, both from the law of Moses and from [the writings of] the prophets.
2 Thessalonians 1:5
The way you are faithfully enduring [such] suffering for the kingdom of God is clear evidence that God's judgment is right in [eventually] counting you worthy of it [i.e., of entering the eternal phase of the kingdom].