Sometimes when life isn't going too well, we panic and think we will not be able to keep our commitments. This happened with me about three weeks ago. I was feeling very down and thought I would be unable to keep my preaching appointments, starting with todays date. I rang the superintendent minister and he said he was free on the first occasion and could take that service at the drop of a hat. Three days later things had turned around and I am now ready to preach this evening. God is faithful. He called me to preach and he has equipped to do it too. God will be faithful to you to in every circumstance, if you trust him.