There is no scriptural age of accountability that I'm aware of if that's what yer askin.
Recalling (from memory, so sketchy ;) ) that of the people who came out of Egypt, all over the age of 20 except 2 died in the desert because of unbelief. And I also think that was an account of generation spreads of mankind i.e. 20 years. Some surmise that is the accountable age, but I don't see it. It marked a generation for those under that age to not be considered in the unbelief generation who died, which was everyone over 20. All the people of Israel, collectively, are referred to children of God regardless of their age in Deut. 14:1 and Psalm 82:6 for examples.
As it pertains to believers we are children of God, moving toward adulthood of some spiritual sorts or markings, noted here by John:
1 John 2:
12 I write unto you, little children, because your sins are forgiven you for his name's sake.
13 I write unto you, fathers, because ye have known him that is from the beginning. I write unto you, young men, because ye have overcome the wicked one. I write unto you, little children, because ye have known the Father.
14 I have written unto you, fathers, because ye have known him that is from the beginning. I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one.
The repetitions, orders and particular notations are interesting side studies.