Why are all people born spiritually dead?
All people are born spiritually dead because Adam, the federal head of the human race, plunged every one of us into that state. Paul describes believers as having been dead in trespasses and sin and asks how they got there; the answer is that they were born in it. This inherited condition means spiritual life must be given.
Les explains from Ephesians 2:1 that Paul, writing to the Ephesian believers, says they were made alive spiritually as a result of their salvation, though they had been dead in trespasses and sin. Les then asks how they got there and answers that we were born in it. Adam, as the federal head of the human race, plunged every one of us into that state, so all people are born spiritually dead.
And you hath he quickened, who were dead in trespasses and sins;