Jesus didn’t expect us to carry on and build the church on our own. He didn’t just tell us to try to be good and help others as many have reduced the gospel to. He actually intended to multiply himself as he worked in us through the power of the Holy Spirit. It is a mystery that God would use fallible human beings to be his representative but he has. We can be used by God as well if we are willing to be filled by his Spirit and have our lives immersed in him.