What do preachers preach when they preach the gospel of Jesus Christ?

We see that preachers in the Bible preached “how that Christ died for our sins according to the scriptures; and that he was buried, and that he rose again the third day according to the scriptures:” (1Corinthians 15:3-4)

We also see that next, they preached how to apply the gospel to our life by repentance, water baptism in Jesus name for the remission of sins, and by receiving the gift of the Holy Ghost. (Acts 2:38)

Apostle Peter was the first preacher to preach the gospel to the Gentiles.

God sent Peter to the home of Cornelius where he, his kinsmen, and near friends had gathered to hear all things that were commanded Peter of God.

Peter realized from a heavenly vision that he had been chosen by God to bring the gospel message for the first time to the Gentile nation.

Peter then opened his mouth and began to preach the gospel of Jesus to them, His death, burial, and resurrection.

"How God anointed Jesus of Nazareth with the Holy Ghost and with power: who went about doing good, and healing all that were oppressed of the devil; for God was with him. And we are witnesses of all things which he did both in the land of the Jews, and in Jerusalem; whom they slew and hanged on a tree: him God raised up the third day, and shewed him openly;" - Acts 10:38-40 KJV

He then preached that those that believe in Jesus may receive remission of sins through His name.

"To him give all the prophets witness, that through his name whosoever believeth in him shall receive remission of sins." - Acts 10:43 KJV

"While Peter yet spake these words, the Holy Ghost fell on all them which heard the word." - Acts 10:44 KJV

The Gentiles received the gift of the Holy Ghost while Peter was preaching!

"And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost." - Acts 10:45 KJV

The believing Jews that came with Peter were shocked that God had accepted Gentiles into the church! When Peter first arrived at Cornelius’ house, he explained this to them.

"And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation; but God hath shewed me that I should not call any man common or unclean." - Acts 10:28 KJV

How did Peter and the believing brethren that came with him know that God had filled the Gentiles with His Spirit?

"For they heard them speak with tongues, and magnify God." - Acts 10:46 KJV

Peter realized when he heard them speaking with tongues that God had given them the promise of the Holy Ghost. He knew now that God had granted them repentance and accepted the Gentiles. (Acts 11:1-18). Peter realized that he and the brethren must also accept them.

"Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?" - Acts 10:47 KJV

Peter also realized the Gentiles had received the PROMISE for entering into covenant with God, but they hadn’t entered into the COVENANT – they had not been WATER BAPTIZED IN JESUS NAME!

"And he COMMANDED them to be baptized in the name of the Lord." - Acts 10:48 KJV

Through Apostle Peter, the Gentiles first HEARD the gospel, and first OBEYED the gospel.