“In this Paul seems to have been consistent: He did not ask for money from a community in which he was actively working to establish a church. The basic reason he gives for this is his concern about hindering the forward movement of the Gospel, whether by giving offense or by burdening fledgling churches. Once a church was established, however, he asked them to finance his travel to the next town. Clearly a concern for the Gospel is paramount for Paul’s expectations here.”
Jouette Bassler in God & Mammon: Asking for Money in the New Testament (Nashville: Abingdon, 1991) 85.