2. The apostles did not preach a Gospel prior to Acts 2. They didn't know anything.
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You just make things up, on the fly, Pate, not studying the details of the book, and carelessly just winging it, making up terms, that are nowhere to be found, much less taught, in the book.
The apostles sure did preach a "good news," a gospel, prior to Acts 2, you deceiver-the gospel of the kingdom, the same good news the Lord Jesus Christ preached, the same good news he told the 12 to preach, including Judas. But that is not equivalent to the good news of 1 Cor. 15:1-4 KJV, the gospel of Christ.
Matthew 10 KJV
1 And when he had called unto him
his twelve disciples, he gave them power against unclean spirits, to cast them out, and to heal all manner of sickness and all manner of disease. 2 Now the names of the twelve apostles are these; The first, Simon, who is called Peter, and Andrew his brother; James the son of Zebedee, and John his brother; 3 Philip, and Bartholomew; Thomas, and Matthew the publican; James the son of Alphæus, and Lebbæus, whose surname was Thaddæus; 4 Simon the Canaanite, and
Judas Iscariot, who also betrayed him.
5
These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into any city of the Samaritans enter ye not: 6 but go rather to the lost sheep of the house of Israel. 7 And as ye go, preach, saying,
The kingdom of heaven is at hand. 8 Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give. 9 Provide neither gold, nor silver, nor brass in your purses, 10 nor scrip for your journey, neither two coats, neither shoes, nor yet staves: for the workman is worthy of his meat. 11 And into whatsoever city or town ye shall enter, enquire who in it is worthy; and there abide till ye go thence. 12 And when ye come into an house, salute it. 13 And if the house be worthy, let your peace come upon it: but if it be not worthy, let your peace return to you. 14 And whosoever shall not receive you, nor hear your words, when ye depart out of that house or city, shake off the dust of your feet. 15 Verily I say unto you, It shall be more tolerable for the land of Sodom and Gomorrha in the day of judgment, than for that city.
Luke 9 KJV
1 Then he called
his twelve disciples together, and gave them power and authority over all devils, and to cure diseases. 2 And he sent them to preach the kingdom of God, and to heal the sick. 3 And he said unto them, Take nothing for your journey, neither staves, nor scrip, neither bread, neither money; neither have two coats apiece. 4 And whatsoever house ye enter into, there abide, and thence depart. 5 And whosoever will not receive you, when ye go out of that city, shake off the very dust from your feet for a testimony against them. 6 And they departed, and went through the towns,
preaching the gospel, and healing every where.