For what thanksgiving can we render again to God for you, for all the joy with which we rejoice for your sakes before our God;
So Paul was praying night and day for the opportunity of going back and ministering to them again, for he had been with them such a short time, he had not been able to establish them fully in the faith; the understanding of the word. And so, "I'm praying and seeking God that somehow I might be able to come back and complete my ministry to you."