Encourage and support missionary to preaching gospel

Acts 18:18-28
Paul sailed for Cyria accompanied by Priscilla and Aquila. They arrived at Ephesus, where Paul left Priscilla and Aquila. He himself went into the synagogue and reasoned with the Jews.
A Jew named Apollos, a native of Alexandria, came to Ephesus. He was a learned man, with a thorough knowledge of the Scriptures. When Priscilla and Aquila heard him, they invited him to their home and explained to him the way of God more adequately.
Apollos vigorously refuted the Jews in public debate proving from the Scriptures that Jesus was the Christ.
A lot of travelling is packed into this short passage. Paul goes by sea from Corinth via Ephesus to Jerusalem and Antioch. He then returns to Ephesus by road through Phrygia and Galatia for a further missionary campaign.
Thanks to Aquila and Priscilla's instruction, the eloquent Apollos became a man of great influence in the Corinthian church.
Why?
Priscilla and Aquila are good helper to Paul and to Apollos. They invited Apollos to their home and explained to him the way of God more adequately. They encourage a learned man to be a man of great influence in Corinthian.
Even I might not a good missionary but we may help or support the missionary to preach gospel.
How?
Do our part that God has given us to encourage and support missionaries to preach gospel.