Adam is the father of Abel, according to the Bible. ADAM was the first man created by God and the first human being on Earth. He is also known as the progenitor of the human race. Abel was the second son of ADAM and Eve, and the younger brother of Cain. Abel was a shepherd and offered sacrifices to God, while Cain was a farmer. Abel's death at the hands of his brother Cain is seen as the first murder in the Bible.