"I will give you the keys of the kingdom of heaven; and whatever you bind on earth shall have been bound in heaven, and whatever you loose on earth shall have been loosed in heaven" (Matthew 16:19). That is what Jesus told Peter and the other disciples regarding the power Jesus had given to them and how they would "continue Christ’s work on earth in preaching the gospel and declaring God's will to men, and they were armed with the same authority as He possessed"1 That didn't mean the apostles took the place of Jesus. There's only one Jesus. It meant they could walk in authority, leadership, confidence, and power that they could, should, and would draw all men unto the Lord. It meant they could, should, and would walk in their God given abilities to influence people to walk towards the Lord. It meant they could, should, and would take Jesus' Word seriously in order to impact everlasting change in people (and themselves). It meant they could, should, and would invite and urge people to experience the Lord in His house, the church. It meant Jesus gave them the power and authority to do such things, because Jesus was, is, and always will be Lord of lords and King of kings.
Today nothing has changed. We have the same authority the apostles had back then. We can use our life to help others see Christ. We can all do our part, because that is one of the main reasons we're here. How are you using your gifts with the keys the Lord God has given you?