1 Corinthian 15:45 "And so it is written, The first man Adam was made a living soul; the last Adam [Christ] was made a quickening spirit." When we look at the detail meaning of this verse we see a much different picture than what the English translation provides.
In Genesis 1:26-27 "26 And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth. 27 So God created man in his own image, in the image of God created he him; male and female created he them." Elohim creation was male and female the spiritual being. These were the spiritual beings that roamed the earth before the formation of humanity.
In Genesis 2:7 "And the Lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul." It was here on the seventh day that Jehovah formed humanity. Not a single man but humanity at large.
In Genesis 2:18-19 "18 And the Lord God said, It is not good that the man should be alone; I will make him an help meet for him. 19 And out of the ground the Lord God formed every beast of the field, and every fowl of the air; and brought them unto Adam to see what he would call them: and whatsoever Adam called every living creature, that was the name thereof." We find that Jehovah placed man in the Garden and then named him Adam. So what does the word Adam mean.
It is a well-known Hebrew name, Adam means "son of the red Earth." Its meaning comes from the Hebrew word "adamah" meaning "earth," from which Adam is said to be formed.
This first Adam is humanity. This means that humanity was formed on the seventh day - the day of humanity. Think of it this way we are the seventh day. The day the living soul of our physical being was formed. When Jehovah breathed the breath of life into the living soul He did that for all of humanity not just one man.
The first Adam was humanity. Humanity was sent out to do the will of God and became then the Apostolic man/humanity.
In 1 Corinthians 15:45-49 "“So it is written: ‘The first man Adam became a living being;’ the last Adam, a life-giving spirit. The spiritual did not come first, but the natural, and after that the spiritual. The first man was of the dust of the earth; the second man is of heaven. As was the earthly man, so are those who are of the earth; and as is the heavenly man, so also are those who are of heaven. And just as we have borne the image of the earthly man, so shall we bear the image of the heavenly man.” Christ was the the second Adam.