"show" ... Not "tell" ...

As part of a committee looking to update and develop the mission for our little cogregation, I am scanning the scripture to clarify what God's desire for his church is as a whole. I notice that here it says "show" ... Not "tell" ...

"... you are a chosen people. You are royal priests, a holy nation, God's very own possession. As a result, you can show others the goodness of God, ...". 1 Peter 2:9