Zechariah 8:16 English Standard Version (ESV) These are the things that you shall do: Speak the truth to one another; render in your gates judgments that are true and make for peace;

One cannot speak the truth without knowing the truth. This is a mystery to the secular world but is not hidden from us who believe.

Jesus declared in John 14:6 that “I am the way, and the truth, and the life.” To know Jesus is to know truth. How do we know Jesus? If we simply say in scriptures then we fall into the same category as the apostle Paul being taught by Gamaliel. We rely on men.

John 14:26 English Standard Version (ESV) But the Helper, the Holy Spirit, whom the Father will send in my name, he will teach you all things and bring to your remembrance all that I have said to you.

Received the baptism of the Holy Spirit. Be born again in the Spirit. Have this new life in Christ. If this is true then the Truth dwells with us. We no long have to rely on men to reveal Truth because He dwells in us.

Matthew 10:20 English Standard Version (ESV) For it is not you who speak, but the Spirit of your Father speaking through you.

This is true, the Spirit of truth in us hears the truth, we will recognize it as truth when we hear it being confirmed in our inner being. This unwavering truth will not lie, cannot lie because He is God.

Romans 1:17 English Standard Version (ESV) For in it the righteousness of God is revealed from faith for faith, as it is written, “The righteous shall live by faith.”

The revelation of truth is by faith. We shall know the truth by faith.