Yet it is by the Spirit we understand the things of God.
The Spirit gave the good news to the apostles and others who propagated it and were capable of being believed
It's in all those scriptures you ignored
All these are sufficient for faith
John 1:6–7 (KJV 1900) — 6 There was a man sent from God, whose name was John. 7 The same came for a witness, to bear witness of the Light, that all men through him might believe.
John the apostle believes the testimony of John the Baptist is sufficient for faith.
John 5:45–47 (KJV 1900) — 45 Do not think that I will accuse you to the Father: there is one that accuseth you, even Moses, in whom ye trust. 46 For had ye believed Moses, ye would have believed me: for he wrote of me. 47 But if ye believe not his writings, how shall ye believe my words?
Believing Moses is sufficient for faith in Jesus
John 4:39 (KJV 1900) — 39 And many of the Samaritans of that city believed on him for the saying of the woman, which testified, He told me all that ever I did.
The testimony of the woman was sufficient for faith.
John 17:20 (KJV 1900) — 20 Neither pray I for these alone, but for them also which shall believe on me through their word;
As is the testimony of the apostles
Acts 19:8 (ESV) — 8 And he entered the synagogue and for three months spoke boldly, reasoning and persuading them about the kingdom of God.
As is the persasion offered by Paul
Acts 17:2–4 (ESV) — 2 And Paul went in, as was his custom, and on three Sabbath days he reasoned with them from the Scriptures,
3 explaining and proving that it was necessary for the Christ to suffer and to rise from the dead, and saying, “This Jesus, whom I proclaim to you, is the Christ.”
4 And some of them were persuaded and joined Paul and Silas, as did a great many of the devout Greeks and not a few of the leading women.
Convincing them Jesus was the Christ
Acts 28:23–24 (KJV 1900) — 23 And when they had appointed him a day, there came many to him into his lodging; to whom he expounded and testified the kingdom of God, persuading them concerning Jesus, both out of the law of Moses, and out of the prophets, from morning till evening.
24 And some believed the things which were spoken, and some believed not.
As is John's gospel
John 20:31 (KJV 1900) — 31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.
As is the reading of scripture
2 Timothy 3:15 (NIV) — 15 and how from infancy you have known the Holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus.
Ephesians 3:4–11 (NIV) — 4 In reading this, then, you will be able to understand my insight into the mystery of Christ, 5 which was not made known to people in other generations as it has now been revealed by the Spirit to God’s holy apostles and prophets. 6 This mystery is that through the gospel the Gentiles are heirs together with Israel, members together of one body, and sharers together in the promise in Christ Jesus. 7 I became a servant of this gospel by the gift of God’s grace given me through the working of his power. 8 Although I am less than the least of all the Lord’s people, this grace was given me: to preach to the Gentiles the boundless riches of Christ, 9 and to make plain to everyone the administration of this mystery, which for ages past was kept hidden in God, who created all things. 10 His intent was that now, through the church, the manifold wisdom of God should be made known to the rulers and authorities in the heavenly realms, 11 according to his eternal purpose that he accomplished in Christ Jesus our Lord.
As is the preaching of it.
Romans 10:10–17 (KJV 1900) — 10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. 11 For the scripture saith, Whosoever believeth on him shall not be ashamed. 12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him. 13 For whosoever shall call upon the name of the Lord shall be saved. 14 How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? 15 And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! 16 But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report? 17 So then faith cometh by hearing, and hearing by the word of God.
Acts 28:23–24 (KJV 1900) — 23 And when they had appointed him a day, there came many to him into his lodging; to whom he expounded and testified the kingdom of God, persuading them concerning Jesus, both out of the law of Moses, and out of the prophets, from morning till evening.
24 And some believed the things which were spoken, and some believed not
