Merv and Merla were born in Canada. In 1967, after a powerful experience with the Holy Spirit, they felt the Lord’s call to launch out into fulltime music ministry. Merla has written almost 500 worship songs, including "Jehovah Jireh", "Awake, O Israel," "Then Shall the Virgin Rejoice," "He That Keepeth Israel".
Merv and Merla have ministered in over 50 countries, including Israel, which became their home from 1976-88 and again after 2001. In Israel they conceived the International Christian Embassy in Jerusalem, as well as the Feast of Tabernacles, an annual event lasting a week, which draws 6000 Christians from 108 different countries.
The Watsons were also the first ones to introduce the Hebraic style of music and choreographed spiritual dance into worship. Merv and Merla have 3 highly gifted adult children – (2 sons, Sean and Ariel, and a daughter Elana) who are all professional musicians.