Is It a Hindrance or a Help

Pastor Jerad uses examples of rocks in the Bible that normally would only have one purpose. When those items are chosen to be used by God to change a situation, they become awesome weaponry, tools that remind us of where He brought us from and can even change all of eternity. David used 5 stones to win a battle. The Israelites crossing into the Promise Land used stones to build a memorial of the promise that God gave them. God used a stone that the enemy placed on Jesus' tomb by rolling it away and uncovering the resurrection of our Lord and Savior. What are some things in our lives that may be being used to make us stumble on? How can God use those to turn our test into a testimony?