The first two brothers
Notice the difference here: Abel, the righteous one is a keeper of sheep. He is a shepherd, and the second born. Cain was a tiller of the ground, like his fallen father Adam. Cain was the first born.
Christ is called the "Last Adam" in 1 Corinthians 15:45.
Christ is called the "Last Adam" in 1 Corinthians 15:45.