Only fear the LORD and serve him faithfully with all your heart. For consider what great things he has done for you. (1 Samuel 12:24 ESV)
God has called us to be faithful servants in HIs kingdom.
We may have a grand idea, for example, of traveling to a far-off land to preach the Gospel to the lost. But God can use us where we are, sharing the Gospel in our neighborhoods and cities.
God has called us to spread His love in everything we do and say. Our task is to be obedient and faithful to His call.
"Our responsibility is simply to make our witness faithful; it is God's responsibility alone to make it effective." - John MacArthur