Recounting the history and development of Resthaven Christian Retreat and Conference Centre in Harare, Zimbabwe, from 1980-2000. From the personal perspective of Carole Jones who managed the Retreat during that period, improving the facilities and increasing the occupancy. Many photographs of the Centre are included, showing the renovations and the staff who helped in the running and administration. Oil in the Jar is a testimony of God's faithfulness and provision.