What we do when no one is looking will determine what we can do when everyone is. The reason David was able to kill Goliath in public is because he had already trusted God with the lions and bears in private. The reason we can serve without being seen is based solely on our motivation. This post by Vivian Mabuni is very inspiring :
“One of the most significant decisions we make as believers, over and over, is choosing to live surrendered to the Lordship of Christ. As we yield our wills and walk in step with the Spirit, we experience freedom and intimacy with God. Woven throughout the pages of Open Hands, Willing Heart – a new book by my friend Vivian Mabuni – I found stories of encouragement, hope, and the challenge to live like Caleb and Joshua, as believers who follow God fully. It’s a grace to welcome my friend and sister Vivian to the farm’s front porch today…”