Adam's nature was changed with his sin - and all his children were "born in sin" - in fact "in sin conceived".
Ps 51:1
"Surely I was sinful at birth, sinful from the time my mother conceived me." NIV
"For I was born a sinner--yes, from the moment my mother conceived me."NLT
"Behold, I was brought forth in iniquity, And in sin my mother conceived me."NASB
"Indeed, I was guilty when I was born; I was sinful when my mother conceived me. "HCB
"Behold, I was brought forth in iniquity, and in sin did my mother conceive me."KJV2000
"Behold, I was shapen in iniquity; and in sin did my mother conceive me." KJV
Rom 3
9 What then? Are we better than they? Not at all; for we have already charged that both Jews and Greeks are all under sin; 10 as it is written,
“There is none righteous, not even one;
11 There is none who understands,
There is none who seeks for God;
12 All have turned aside, together they have become useless;
There is none who does good,
There is not even one.”
13 “Their throat is an open grave,
With their tongues they keep deceiving,”
“The poison of asps is under their lips”;
14 “Whose mouth is full of cursing and bitterness”;
15 “Their feet are swift to shed blood,
16 Destruction and misery are in their paths,
17 And the path of peace they have not known.”
18 “There is no fear of God before their eyes.”
19 Now we know that whatever the Law says, it speaks to those who are under the Law, so that every mouth may be closed and all the world may become accountable to God; 20 because by the works of the Law no flesh will be justified in His sight; for through the Law comes the knowledge of sin.
That "bent" toward evil that Paul says - exempts no one -- is what we call the "sinful nature" and Paul sometimes calls it "the flesh" as in Romans 7 being at war against our mind - that is determined to follow Christ.
I am saying that every saint - baby or not - has their sinful nature removed at the resurrection in 1Thess 4. rapture and resurrection that takes place at the 2nd coming.
1 Cor 15
42 So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption:
43 It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power:
44 It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
45 And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.
46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
47 The first man is of the earth, earthy; the second man is the Lord from heaven.
48 As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly.
49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly.
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.
51 Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,
Man is and always has been created in the image of God:
Gen. 9: 6 Whoever sheds the blood of man, by man shall his blood be shed; for God made man in his own image.
God is justifying the punishment of death for murdering a human which is made in God’s image, so what attributes of God does every mature adult have? I would suggest all mature adults have the ability to obtain and grow Godly type Love, since God is Love. Other earthly animals can have an instinctive type of love, but not a Godly type Love.
Those that argue for a baby being in sin will miss-use this:
Ps 51:5 Behold, I was brought forth in iniquity, and in sin did my mother conceive me.
A Perspective on Psalm 51:5
by William P. Murray, Jr.
Are men born sinners? A commonly abused 'proof' text is Psalm 51:5. Although I cannot claim the following as a result of my own scholarship or research, the information is a culmination from many sources over the years, and, I feel, the best explanation of this particular text that I have come across.
Psalm 51:5 - "Behold, I was shapen in iniquity, and in sin did my mother conceive me." KJV
This is a Hebrew poetic parallelism, with the second line of the verse saying the same thing as the first line in a slightly different way. The first verb, of which David is the subject, is in the Pulal tense (as is "made" in # Job 15:7 ), which is an idiom used to refer to creation or origins, and is the 'passive' form of Polel ("formed": # Ps 90:2 Pro 26:10 ). TWOT, #623, 1:270.
The subject of this verse is NOT the state or constitution of David's nature as a sinner at, or before, his birth. The subject is, as the verse clearly states, the 'circumstances' of his conception- the sexual union which produced him was an act of sin, and addresses the unrighteousness of his mother's act, not anything (such as a sin nature) inherent within himself. (The NIV's version of this verse is an INTERPRETATION, not a translation: "Surely I was sinful at birth, sinful from the time my mother conceived me.")
David had two half-sisters (Zeruiah, Abigail).....:
1CHR 2:13-16 13 “And Jesse begat his firstborn Eliab, and Abinadab the second, and Shimma the third, 14 Nethaneel the fourth, Raddai the fifth, 15 Ozem the sixth, David the seventh: 16 Whose sisters were Zeruiah, and Abigail. And the sons of Zeruiah; Abishai, and Joab, and Asahel, three. 17 And Abigail bare Amasa: and the father of Amasa was Jether the Ishmeelite.”
....and the father of David's half-sisters was not Jesse, but Nahash:
2Sam 17:25 “And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man's son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab's mother.”
Nahash, the father of Zeruiah and Abigal, David's half-sisters, was an Ammonite king:
1Sam 11:1 “Then Nahash the Ammonite came up, and encamped against Jabeshgilead: and all the men of Jabesh said unto Nahash, Make a covenant with us, and we will serve thee.”
1Sam 12:12 “And when ye saw that Nahash the king of the children of Ammon came against you, ye said unto me, Nay; but a king shall reign over us: when the LORD your God was your king.”
David's father was Jesse, not Nahash. Zeruiah and Abigal were David's half-sisters through his mother's previous marriage to Nahash. This would also help explain why Nahash showed kindness to David, perhaps out of respect for David's mother, Nahash’s former wife and the mother of two of Nahash's children.
2Sam 10:2 “Then said David, I will shew kindness unto Hanun the son of Nahash, as his father shewed kindness unto me. And David sent to comfort him by the hand of his servants for his father. And David's servants came into the land of the children of Ammon.”
David's mother was most likely the second wife of Jesse, the first wife being the mother of David's half-brothers. Jesse’s first wife's standing before the 'righteousness of the law', (her not having been married to, or the concubine of, a heathen king, as was David’s mother), would have been superior to that of David's mother, and explains why David's half-brothers, Jesse's other sons, would have felt they were superior to David, and why he would be accused of being prideful, for thinking he was as good as them....