Revelation 2:2

2:2 ‘I know your works as well as your labor and steadfast endurance, and that you cannot tolerate evil. You have even put to the test those who refer to themselves as apostles (but are not), and have discovered that they are false.

Revelation 2:13

2:13 ‘I know where you live – where Satan’s throne is. Yet you continue to cling to my name and you have not denied your faith in me, even in the days of Antipas, my faithful witness, who was killed in your city where Satan lives.

Revelation 3:1

To the Church in Sardis

3:1 “To the angel of the church in Sardis write the following:

“This is the solemn pronouncement of the one who holds the seven spirits of God and the seven stars: ‘I know your deeds, that you have a reputation that you are alive, but in reality you are dead.

Revelation 7:14

7:14 So I said to him, “My lord, you know the answer.” Then he said to me, “These are the ones who have come out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb!