Wisdom

Luke 7:35 - Yet wisdom is justified by all her children.

Dear Gods children here, What is Wisdom? How is it Justified? And who are its children?

Note:- Before answering this plz read verses 18 - 35 of chapter 7

In Luke chapter 7 from 11 to 17 Jesus brought the young man (the only son of a window) back to life from dead.This was informed to John. John sent his disciples to Christ to ask whether "You are the Coming One, or should we expect another?" Christ answered in a different way so that John can interpret.

"Go and report to John what you have seen and heard the
blind receive their sight,
the blame walk,
the lepers are cleansed and
the deaf hear,
the dead are raised,
the poor have the gospel announced to them"

after sending John's disciple Christ said that "Among those born of women there is no one greater than John, yet he who is least in the kingdom of God is greater than he"

When Tax collector (sinners) and others (less scriptural knowledge) heard this said God is righteous. This people where baptised by John (had repented of sins), but Pharisees (high in scripture law) and the lawyers (high in human law) rejected Christ word cause they were not baptised by John.
This people after seeing John did not believe in john regarding kingdom of God (said he has demon because he did not eat bread or drink wine), same people after hearing and seeing Christ and his work (he was eating and drinking with sinners) did not believe in kingdom of God and hence Christ said 

"Yet wisdom is justified by all her children"

All her(wisdom) Children - Believed in Christ and John. Non believers did not believe in john and so could not believe in Christ.
When All her children justified her(wisdom) by believing. 

"He who is least in the kingdom of God is greater than he" here Christ refers the kingdom people and hence All her children here refers kingdom people. Wisdom has children, kingdom of God has people and hence wisdom is kingdom of God and kingdom of God is Christ himself. Kingdom of God is Christ and believers.

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What is Wisdom? Ans : Kingdom of God : Christ
How is it Justified? - believing
And who are its children? - All believers of Christ