God is spirit and those who worship Him must worship Him in spirit and in truth. To be a child of God is a spiritual matter, that manifests itself in the physical. You must be born again of the Spirit of God to be a child of God. You must receive the Holy Spirit of God to hear the voice of God. You must be taught by the Spirit of God to be part of His kingdom.
You first have to believe in, Jesus Christ bow down before Him, the Father of all spirits and accept Him into your life, be spiritually reborn and then He will teach you. He will guide you. A child of God is not taught by other people. He is not taught by himself, he is taught by God because he hears the voice of God; he knows God. Have you been born again? Have you met Jesus Christ? Have you obeyed His words? Did you repent and were you baptized in water? Have you received the Holy Spirit? Do you hear the voice of God and are you being taught by God? Jesus Christ will say to many people:”Go away I never knew you.” It is because they never knew Him, they were never born again, they were never children of God they were never taught by God.
Have you been born again of the Spirit of God and are you taught by God? Are you led by the Holy Spirit that Jesus Christ promised to those who obey Him?
May Jesus bless you.