The Testimonies of Two or Three Witnesses

A matter must be established by the testimony of two or three witnesses.
[Deut 19:15]

Two or three prophets should speak, and the others should weigh carefully what is said.
[1 Cor 14:29]

In your own Law it is written that the testimony of two men is valid.
[John 8:17]

The bible, the recorded human testimonies of God, affirms what the Spirit reveals within you.

Without the internal revelation we cannot see, even if it is plainly written or said.