Why should Christians do personal evangelism?

Jeremy Marshall worked for many years in banking throughout the world. His last job was CEO of the UK's oldest private bank, C. Hoare & Co. He stepped down in 2016 after being diagnosed with incurable cancer. He is Chairman of Christianity Explored, Pastor Training International, and Christian Books Worldwide, and a trustee of various other Christian charities. Married to Jeanette, he has 3 adult children, and lives in Sevenoaks, Kent. Here he responds to questions from his talk, "How To Do Personal Evangelism and Personal Apologetics," given at the 2019 European Leadership Forum.