Why Does the Bible Say Man Is Born in Sin?
From the beginning
It all started with the Katabole ... Many know as ... the fall of Lucifer. Yes. When he was kicked out of heaven for wanting to take God's place. Believe it or not, he was Father God's right hand man. I mean he secured many responsibilities in heaven. Known then as a Cherub. A very special Angel. But he preferred to sit on Gods Throne "The Mercy Seat" rather than Guard it.
Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire. Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee.
Creation of Sin
Father God became jealous because he had a third of God's children calling him God. However, Lucifer continued to stand proud of what he had done & what he'd achieved. He challenged Father God ... that he could lead his Children and sit on his Throne. But Father God showed him grace ... by allowing him into the Garden of Eden instead of destroying him. He loved Lucifer as much as he loves us today. Still ... Because of the third he'd convince already ... Lucifer felt he could win over the rest. This is when Sin was created.
Ye shall not go after other gods, of the gods of the people which are round about you; (For the LORD thy God is a jealous God among you) lest the anger of the LORD thy God be kindled against thee, and destroy thee from off the face of the earth.
The Gamble of the Soul
Father God took the challenge under his conditions. Every Soul would be given a New Body and Free Will. But Lucifer bargained for the World & Temptation. Father God permitted this, but only offered his Word. Both Plans got set in motion. Lucifer then turned over his Grace to be now known as Satan ... The Son of Perdition.
2 Thessalonians 2:3-4
Let no man deceive you by any means: for that day shall not come, except there come a falling away. Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God first, and that man of sin be revealed, the son of perdition;
Birth of Flesh
From the beginning Father God saw the Sin in Satan way before he fell. Already he had developed a plan.
Man would be born with two bodies ...Spiritual meaning incorruptible and Flesh meaning corruptible (1 Corinthians 15:52-53 ...“In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. For this corruptible must put on incorruption, and this mortal must put on immortality.”
Check out the entire book of (1 Corinthians Ch. 15). How flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.. Sin is transgression of the law ( 1 John 3:4) which can only be committed in a flesh body ... All man.
Still ...Satan today believes this was his plan by introducing man to the knowledge of "Sin".
However, every man was created by Father God. This is why Jesus Christ died on the cross for all man sin's meaning flesh. Retrieving back our rightful bodies. Giving us...Everlasting life.
Let’s Sum it up:
Temptation became Flesh ... Flesh became Sin. Both became one. Meaning each soul born of flesh today, is born in Sin. Now you know.