Federal Headship Part 1 of 3

This teaching a very important as it shows how the bible explains how through 1 man, Adam, it brought the whole world under sin (Adam is a federal head), so God's Son, who is also 1 man (Jesus is a federal head) had to be born of a virgin, and therefore not under Adam's sin, lead a sinless life, become sin and die for us, be raised from the dead, and make it possible to make righteous all in the world that believe.