Hudson Taylor and missionaries of the China Inland Mission used the four-color version in open-air preaching and individual evangelism. It has been used by missionaries and teachers such as Jennie Faulding Taylor, Amy Carmichael, Fanny Crosby (who was blind), and the modern-day Child Evangelism Fellowship, which added a fifth color: green (after white, before gold) – representing one's need to grow in Christ after salvation.
Hudson Taylor and missionaries of the China Inland Mission employed the four-color version for open-air preaching and individual evangelism. This approach has been used by missionaries, educators, and modern-day organizations like Child Evangelism Fellowship, which added a fifth color: green (after white, before gold) – representing the need to grow in Christ after salvation.