Back in May I preached my first ever topical sermon series which happened to be on Christian faith in the secular workplace.
You can listen to them by clicking on the links below. I hope they might be helpful for you in someway.
A special mention goes to Tim Keller and his great book Every Good Endeavour which was a great help in my preparation.
Week 1: Work as Good and Cursed
Week 2: Priesthood of All Believers
Week 3: Living as Exiles in the City
Week 4: Agents of Justice and Peace
Week 5: Workplace Evangelism