Peter makes a paralyzed man able to walk again, like Jesus did. To top that, he then raised a woman from the dead, just like Jesus did (Mark 5:35-43; Luke 8:49-56). Tabitha is called a "disciple" and she was known for how she served others, just like Jesus.
The “gospel” that Jesus proclaimed was a call to follow Him. Not just to receive certain benefits from Him, but to actually receive Him. This is what the earliest Christians seemed to hear from Jesus, because they did anything they could to follow Him - to know Him and learn from Him and actually become like Him.
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