God is living. (Joshua 1:9)
He is the One who raised Jesus from the grave after He died on the cross (Acts 2:32).
He sent the Holy Spirit to testify about the gospel. (Matthew 12:28)
The gospel is spread by the mouth of Jesus Christ. (Romans 10:17)
Only when you have the testimony of the Holy Spirit, it is the truth. (John 16:13)
The kingdom of God is not a world of ideas and hence it is not a matter of talk but of power. (1 Corinthians 4:20)
The Holy Spirit does not testify about the word of man but only testifies about the word of God.
Further, He testifies about the word spoken by Jesus. (John 14:26)
Therefore, people who are to become witnesses of Jesus are commanded to receive the Holy Spirit. (John 15:26-27) This is how the kingdom of God works.
Only the testimony of the Holy Spirit has life. (1 John 5:12)
The word of God is living and active (Hebrews 4:11-12) and therefore what the Holy Spirit testifies is the truth.
Do not testify about the kingdom of God with wise words of man but do so by the Holy Spirit.
Even though you may share the word of the Holy Spirit, it has to be the truth. The Holy Spirit will testify only about the truth.
The testimony of the Holy Spirit will bring the faith of salvation.
Accordingly, let us be filled with the truth and the Holy Spirit.