Flirty Fishing is a form of evangelistic religious prostitution practiced from around 1974 to 1987 by female members in the new religious movement, the Children of God, now known as The Family International. The term refers to Matthew 4:19 from the New Testament, in which Jesus tells two fishermen that he will make them "fishers of men". Cult leader David Berg extrapolated from this that women in his movement should be "flirty fishers," the targeted men were called "fish." Flirty Fishing was defined as using sex appeal for proselytizing. Berg noted that Flirty Fishing did not necessarily entail intercourse, but that this was by far the most efficient method of proselytizing.