Apostle Samuel Mulumbi is an ordained minister of the Gospel of Christ with an apostolic and prophetic mandate to the Nations of the World. He is the Founder and the General Overseer of Not I But Christ Ministries (NIBC), which has many branches in Kenya. He is also the Founder of Gremsow Ministries (God’s Rescue Mission Soldiers on Watch), which runs Apostolic and Prophetic Conferences, Crusades, School of Ministry Leadership, Ladies Prophetic Conferences, Youth Conferences & Leadership Seminars, etc. He is a certified Public Transformational Speaker, an Entrepreneur, and a Bible Scholar. He is an author with a couple of titles and is married to Madam Maureen Mulumbi together are blessed with three sons and two daughters.