Acts 4:32; 5:1-5 Luke tells us how Ananias and Sapphira, a married church couple, lied to God (Satan having filled their hearts) and consequently dropped dead.
Acts 20:17-20, 28-31 The apostle Paul tells the elders of the church in Ephesus that savage wolves will come in among them, not sparing the church flock/people, and that from among the church people themselves, some would arise and speak perverse things to draw the people away.
1 Cor. 1:7 Paul scolds the church people in Corinth for their:
divisions and quarreling among themselves – 1 Cor. 1:10-11.
carnality as displayed in jealousy and strife among themselves – 1 Cor. 3:1-3.
sinfully judgmental action and words – 1 Cor. 4:3, 5.
immorality – 1 Cor. 5:1.
pride/arrogance – 1 Cor. 5:2.
boasting – 1 Cor. 5:6.
compromising attitude and actions – 1 Cor. 5:7, 13.
lawsuits against each other – 1 Cor. 6:1, 4-8.
marital insensitivity – 1 Cor. 7:5.
insensitivity to their fellow Christians – 1 Cor. 8:9-12.
division, selfishness, and drunkenness – 1 Cor. 11:18-22.
taking communion/the Lord’s Supper in an unworthy manner – 1 Cor. 11:27-31.
immature thinking and selfish misuse of spiritual gifts – 1 Cor. 14:20, 4, 12.
lack of belief in Christ’s resurrection – 1 Cor. 15:12.
lack of sober-mindedness and continued sinning – 1 Cor. 15:34.
lack of belief in the resurrection of believers – 1 Cor. 15:35-36.
being easily deceived and religiously gullible – 2 Cor. 11:4, 20.
sins of all kinds – 2 Cor. 12:20.
failure to deal with their sins – 2 Cor. 12:21; 13:2, 10.
Gal. 1:2 Paul scolds the churches/church people in Galatia for their:
quick desertion of Christ and the true gospel – Gal. 1:6.
foolishness in trying to be perfected by the flesh – Gal. 3:1-3.
faulty religious thinking and actions – Gal. 4:9-11; 5:4.
2 Thes. 1:1 Paul scolds some in the church in Thessalonica for leading undisciplined lives, being lazy, and busybodies – 2Thes. 3:6, 11.
1 Tim. 1:19-20; 4:3; 2 Tim. 3:1-5; 4:3-4 Paul warns Timothy about religious/church people who will or have gone astray and who pollute churches with false teaching and sinful living.
2 Tim. 2:16-18 Paul says that Hyemnaeus and Philetus went astray from the truth, are teaching falsely, are speaking worldly and empty chatter, and that they are to be avoided.
Titus 1:10-13 Paul tells Titus to severely reprove the religious/church people who were rebellious, deceptive, empty talkers, who were upsetting whole families with false teachings.
James 1:1 James scolds the Hebrew Christian assemblies/churches for being discriminatory – Jas. 2:1-9.
quarreling, having conflicts and self-centered pleasure, lusting, murdering, being envious, fighting, being worldly – Jas. 4:1-4.
being sinful and double-minded – Jas. 4:8.
boastful and prideful/arrogant – Jas. 4:16.
3 John 1:1, 9-11 John states that Diotrephes, a self-appointed church leader, was slanderous, prideful, and acting evilly.
Rev. 2:1, 4-5 John warns the church in Ephesus to repent of having left their first love of Christ or suffer the consequences.
Rev. 2:12, 14-16 John warns the church in Pergamum to repent of the evil teachings of Balaam and the Nicolaitans or suffer God’s discipline.
Rev. 2:18.20-23 John warns the church in Thyatira of their tolerating the evil woman Jezebel who teaches and leads Christ’s bondservants astray so that they commit immorality, etc.
Rev. 3:1-3 John warns the church in Sardis to wake up and repent from their spiritual deadness and incomplete deeds of responsibility.
Rev. 3:14-19 John warns the church in Laodicea to be zealous and repent from their lukewarmness, pride, self-sufficiency, and spiritual blindness.
Yes, God and spiritual leaders do speak negatively about churches and church people.
What value does it have? Well, it might restore sinning Christians (2 Cor. 7:8-10), and it can protect other Christians from harm or error (Acts 20:31; 1 Cor. 5:7).