Hi Moises,
You know I have been thinking about this topic and I guess I feel the difference between being a child and mature is knowledge, to a certain extent. When someone is young they do things because they just don't know better and are ignorant about so much, they usually have a very small simple world and understanding. The sweet innocence of a child is actually quite a delight. But this also makes them a target for scrupulous people, because as a child you are naive and can be easily manipulated. Paul speaks of this.
1Co 13:11 When I was a child, I spoke like a child, I thought like a child, I reasoned like a child. When I became a man, I gave up childish ways.
1Co 14:20 Brothers, do not be children in your thinking. Be infants in evil, but in your thinking be mature.
Their is that sweet innocence trustfulness of a child that is a precious attitude to have towards God, but in this world we must be mature and wise to the ways that lead to death, spiritually speaking.
Mat 10:16 Behold, I send you out as sheep in the midst of wolves. Therefore be as wise as serpents and as harmless as doves.
So I look at being mature in the spirit as being able to see beyond the foolishness of the world and it's religions and no longer getting caught up in all that confusion. Now by His Spirit He is teaching us to be mature/wise and to have a sound mind.
2Tim 1:7 for God did not give us a spirit of fear, but of power, and of love, and of a sound mind;
Eph 4:11 And He gave the apostles, the prophets, the evangelists, the shepherds and teachers,
v. 12 to equip the saints for the work of ministry, for building up the body of Christ,
v. 13 until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fullness of Christ,
v. 14 so that we may no longer be children, tossed to and fro by the waves and carried about by every wind of doctrine, by human cunning, by craftiness in deceitful schemes.
Thanks for the topic Moises.
mercy, peace and love
Kat