The man who is being taught the Christian message should share all the good things he had with his teacher.

Do not deceive yourselves; no one makes a fool of God. A person will reap exactly what he plants. If he plants in the field of his natural desires, from it he will gather the harvest of death; if he plants in the field of the Spirit, from the Spirit he will gather the harvest of eternal life. So let us not become tired of doing good; for if we do not give up, the time will come when we will reap the harvest.

So then, as often as we have the chance, we should do good to everyone, and especially to those who belong to our family in the faith.

Galatians 6:6-10