In 1 Corinthians 2:1, Paul states he did not use lofty speech — showing how the testimony was confirmed through humble preaching.

In 1 Corinthians 2:2, Paul specifies the content of the testimony confirmed in them: Jesus Christ crucified.

Revelation 19:10 declares 'the testimony of Jesus is the spirit of prophecy' — linking the testimony to prophetic witness, as confirmed in Corinth.

Acts 18:5 shows Paul actively testifying that Jesus is the Christ in Corinth—the very event that confirmed the testimony among them.

Revelation 12:17 identifies those who 'hold to the testimony of Jesus' — same testimony Paul says was confirmed in the Corinthians.

1 Timothy 2:6 identifies the testimony as Christ giving himself as a ransom—the core content of what was confirmed in the Corinthians.

Revelation 1:9 shows John's endurance and exile for the 'testimony of Jesus' — the same testimony Paul says was confirmed in believers.

Revelation 1:2 shares the same phrase 'testimony of Jesus Christ' — John bears witness to it as Paul says it was confirmed in Corinth.

Hebrews 2:4 explicitly says God bore witness with signs, wonders, and Spirit gifts—the very confirmation of the testimony about Christ.

1 John 5:11 defines the testimony as God giving eternal life in his Son—the exact truth confirmed among the Corinthians.

2 Timothy 1:8 exhorts not to be ashamed of the testimony about our Lord—the same testimony that was confirmed in the Corinthians.

Revelation 12:11 describes believers conquering by 'the word of their testimony' — the testimony of Christ active in their lives.

Revelation 6:9 shows martyrs slain for the witness they bore — an ultimate cost of the testimony that was confirmed in Corinth.

Hebrews 2:3 describes the salvation testimony declared by the Lord and attested by hearers—same confirmation chain as the testimony about Christ.

In 2 Corinthians 12:12, Paul's signs and wonders confirm apostleship—the same way the testimony about Christ was confirmed among you.

Acts 22:18 contrasts the Corinthians' acceptance: there the Lord warns Paul his testimony will be rejected in Jerusalem.

John 15:26 says the Spirit of truth bears witness about Jesus—this is the confirming testimony that Paul says was confirmed among you.

Mark 16:20 describes the Lord confirming the message with signs — parallel to the confirmation of the testimony of Christ in Corinth.

Romans 15:19 mentions signs and wonders confirming Paul's gospel ministry — similar to the confirmation of the testimony in Corinth.