Do not be surprised if temptations come. The one way is to throw yourself, everything you have to give, into the service to which you have been called. Paul spoke of himself as an offering poured out on the sacrifice and service of your faith “the sacrifice and service of your faith” (Philippians 2:17). That is what you must be, nothing kept back- And as you give all, you find all.
Often His call is to follow in paths we would not have chosen. But if in truth we say, “Anywhere, Lord,” He takes us at our word and orders our goings, and then He outs a new song in our mouths, even a thanksgiving unto our God (Psalm 40:2-3, Prayer Book Version). there is wonderful joy to be had from knowing that we are not in the way of our own choice. At least I have found it so. It gives peculiar sort of confidence that even we – we who are nothings – are being “ordered” in our goings. It is very good to be “ordered” by our beloved Lord.
Source: Candles in the dark by Amy Carmichael.