The true Gospel of God, the Gospel of the Lord Jesus Christ is only three words:
A Promise Fulfilled.
Three words. God has kept His Promise and we are witnesses of that Promise. That was the message of the Lord's apostles. They were commissioned to herald that the God of Abraham, Isaac, and Jacob has kept His Promise to send a Deliverer, a Prophet like unto Moses, who would deliver God's people and usher in a time of peace, prosperity, and safety.
The Promise:
Genesis 3:15
15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.
The Fulfillment:
Acts 2:36
36 Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
The apostles were commanded and instructed AFTER they were endued with power from on high (the Holy Ghost), to preach a message of a fulfilled Promise of God, and they also were able to emphasize that message with the testimony that they saw a dead man come alive and rise from His grave. This was the message the apostles preached. Everything else in Scripture about their Messiah was peripheral information and knowledge. The core of their message which was punctuated in exclamation by their witness of seeing a dead man rise from His grave was a simple three-word message: God has kept His Promise, it was: A Promise Fulfilled.
A Promise Fulfilled.
Three words. God has kept His Promise and we are witnesses of that Promise. That was the message of the Lord's apostles. They were commissioned to herald that the God of Abraham, Isaac, and Jacob has kept His Promise to send a Deliverer, a Prophet like unto Moses, who would deliver God's people and usher in a time of peace, prosperity, and safety.
The Promise:
Genesis 3:15
15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.
The Fulfillment:
Acts 2:36
36 Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
The apostles were commanded and instructed AFTER they were endued with power from on high (the Holy Ghost), to preach a message of a fulfilled Promise of God, and they also were able to emphasize that message with the testimony that they saw a dead man come alive and rise from His grave. This was the message the apostles preached. Everything else in Scripture about their Messiah was peripheral information and knowledge. The core of their message which was punctuated in exclamation by their witness of seeing a dead man rise from His grave was a simple three-word message: God has kept His Promise, it was: A Promise Fulfilled.