There are no verses that give the exact words age of accountability.
John 12:47And if any man hear my words, and believe not, I judge him not: for I came not to judge the world, but to save the world.
48He that rejecteth me, and receiveth not my words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day.
49For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak.
Can a baby reject Christ?
Acts 16:30And brought them out, and said, Sirs, what must I do to be saved?
31And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.
Can a baby believe?
Romans 3:24Being justified freely by his grace through the redemption that is in Christ Jesus:
25Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;
26To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.
Christ has become the propitiation through faith in his blood. Can a baby place their faith in Christ?
1 John 2:1My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:
2And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.
3And hereby we do know that we know him, if we keep his commandments.
Christ has paid the price for all mankinds sins including the babies and little children. The issue has become do you Believe on Christ.
John 3: 15That whosoever believeth in him should not perish, but have eternal life.
16For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
17For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
18He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
Can a baby believe on Christ?
If He can and doesn't then he or she is condemned already, but since they don't have the capacity to believe or reject they are not condemned. The only condemnation comes because of unbelief, until the child gets to the point where they can believe and reject they are not condemend. Verse 18 is very clear if you don't believe you are condemned already.
I haven't seen an infant that can believe or not believe in Christ, have any of you?
If you don't believe in the name of the only begotten Son of God you are condemned, condemnation comes because of unbelief, does anyone here know of a baby has not believed or that has believed?
The earliest I have heard of someone saying they believed on Christ for salvation was 4 years old and she was a pastors daughter.
If an infant or young toddler can reject Christ in unbelief then they will go to eternity with unbelievers, tell me what age do you start telling an infant you must believe on Jesus let me hear you confess that you are a sinner in need of salvation and let me hear you call on the name of the Lord for salvation.
Those are the requirements for salvation aren't they.
Romans 10:13, John 3:16, Acts 16:31, 1 John 5: 13 These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
The infant and young toddler cannot meet the requirements needed for salvation, so would God condemn for that?