What is the Gospel

You could call the gospel the good news package.

The gospel is the good news that Jesus died for our sins, was buried and rose again the third day. (1Corinthians 15:1-8).

The gospel is also the good news that when we repent of our sins, are buried with Him by baptism for remission of our sins, we can be filled with the baptism of His Spirit to walk in new life. (Romans 6:1-4).

Jesus told a ruler of the Jews that to enter His kingdom a person must be born of water and of the Spirit. Jesus was speaking of water and Spirit baptism – the gospel. 

"Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God." - John 3:5 KJV

"Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother's womb, and be born?" - John 3:4 KJV

Jesus explained that He was speaking of a spiritual birth, not our natural physical birth.

"That which is born of the flesh is flesh; and that which is born of the Spirit is spirit." - John 3:6 KJV

Jesus also explained that when we receive His Spirit there would be a sound as we are filled. This sound is speaking in tongues as His Spirit gives us the ability. Jesus compared His Spirit to the wind.

"The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit." - John 3:8 KJV

On the Day of Pentecost, when God’s Spirit was poured out on the followers of Jesus, there was a sound like the wind. It was the believers speaking in tongues as they were filled with the Spirit.

"And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. ... And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance." - Acts 2:2, 4 KJV