Hi Dora,
I'm not sure that Paul was talking about the age of accountability there. NT Wright has a great exposition on that passage that if we wait long enough, I'm sure Drew would love to expound upon
Anyway, Check out these verses from Exodus.
Exodus 30 11 Then the LORD said to Moses, 12
“When you take a census of the Israelites to count them, each one must pay the LORD a ransom for his life at the time he is counted. Then no plague will come on them when you number them. 13 Each one
who crosses over to those already counted is to give a half shekel,[
c] according to the sanctuary shekel, which weighs twenty gerahs. This half shekel is an offering to the LORD. 14 All who cross over, those twenty years old or more, are to give an offering to the LORD. 15
The rich are not to give more than a half shekel and the poor are not to give less when you make the offering to the LORD to atone for your lives. 16 Receive the atonement money from the Israelites and use it for the service of the tent of meeting. It will be a memorial for the Israelites before the LORD, making atonement for your lives.â€
We see from the above verse that when a census was taken, those above 20 were to pay a half shekel as an atonement for their lives. (Peter echo's this in 1 Peter 1:18)
We also see in Numbers 1 that one had to be at least 20 to go to war.
We also have these verses found in the book of Numbers 14 29 In this wilderness your bodies will fall—every one of you twenty years old or more who was counted in the census and who has grumbled against me. 30 Not one of you will enter the land I swore with uplifted hand to make your home, except Caleb son of Jephunneh and Joshua son of Nun. 31 As for your children that you said would be taken as plunder, I will bring them in to enjoy the land you have rejected.
We see from above that anyone under 20 was still considered a child and was allowed passage into the promised land.
If I were to push a doctrine on the age of accountability, these would probably be my starting verses. :yes