For they themselves openly declare about us what sort of reception we had among you, and how you turned to God from idols to serve the living and true God and to await his Son from heaven, who he raised from the dead, Jesus, who delivers us from the coming wrath. 

1 Thessalonians 1:9-10

Paul recounts that the Thessalonians have turned from idols and vain things to the living and true God. They have stopped wasting their lives on things that could never fulfill them or bring satisfaction and turned to God, who alone can satisfy their hearts. 

This is what sharing our faith is about. It is about helping people turn from idols and the things in their life that can never fill them up to the living and true God. It is about being an instrument of life change that helps people turn from unsuccessful and self-defeating ways to the more successful ways of God. If we love people, we will introduce people to Christ. 

Do you know someone who is living for idols, for vain things that have no eternal value? Pray for him or her. Pray for opportunities to invest in that person and, when appropriate, invite him or her to church.