John 1:29 records John's declaration 'Behold, the Lamb of God' — the exact testimony that John 10:41 confirms as true.

In John 1:33, John describes knowing Jesus through the Spirit's descent — a key detail of the truthful testimony referenced in John 10:41.

John 1:34 records John's witness that Jesus is the Son of God — the very truth affirmed in John 10:41 by the people.

John 3:26 records John's disciples reporting about Jesus — this earlier testimony is affirmed by the crowd in John 10:41.

John 3:29-36 contains John's final testimony about Jesus' supremacy — consistent with the claim in John 10:41 that all he said was true.

In John 7:31, many believe because of Jesus' signs — contrasting with belief here that relies on John's word despite him performing no signs.

In John 11:45, many believe after seeing Jesus raise Lazarus — a contrast to this belief based on testimony rather than miraculous signs.

In John 4:39, many Samaritans believe because of the woman's testimony — a parallel to belief here based on John's testimony about Jesus.

Matthew 3:11 shows John announcing Jesus will baptize with the Spirit — an example of his true testimony cited in John 10:41.

In Matthew 3:12, John describes Jesus' winnowing and judgment — part of the accurate testimony that John 10:41 says was true.

In Luke 7:26-28, Jesus calls John the greatest prophet — affirming his authority, which backs up the truth of his testimony noted in John 10:41.