God has to choose you and send you to preach, not every one can preach. The prophets were all called.
Jonah went to Nineveh when he was sent on a mission to preach there.
The last command of Jesus was to go out in the world and preach , and make disciples.
Sanghamitra
Leo X
There is only one step - to be sent by God as the Bible says: And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! (Romans 10.15)
No, not unless they are in a religious private school. Otherwise, they can teach about it in a historical way in accordance with their mandated curriculum, with no attempt to preach or convert anyone.
An apostle is - he who is sent. He who is sent to preach the gospel of Christ and wonders and miracles follow him, he is teached in the word of God and lives the word of God. Hope this helps
Jonah was told to go and preach at Nineveh. But he did not go there he went the opposite way.
Parents can tell but never teach, unless they practice what they preach.
Elijah
Preaching it and living it; as the Bibles says in Romans 10.15. "And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!"
Romans, chapter 10 verse 15 How can he preach the gospel except he be sent.