I'm again reading through the daily devotional "Holiness and High Country" by A. F. Harper. I found these words instructive this morning:
"From all of us who are true Christians, God expects a portion of our income, a part of our time, and a measure of our thought and planning to be given for the furtherance of His work in the world. Christian life begins at Calvary, but effective service begins at Pentecost."
He begins the final paragraph of the devotional with this question:
"Is my consecration such that God can call on me for some service today?"