In his early career as a singing cowboy he composed his song Texas Plains. It was this song that Patsy Montana reworked into her million seller hit I Want to Be a Cowboy 's Sweetheart (1935). Hamblen wrote the popular songs "This Ole House '' (1954) (popularized by Rosemary Clooney, among others) and "Open Up Your Heart (And Let the Sunshine In) '' (not to be confused with the song from the Broadway musical Hair). Other songs include "Hell Train '', "It Is No Secret (What God Can Do) '' (not the contemporary Christian song of a similar name in the 1980s) and "Blood on Your Hands ''. Some of his post-conversion songs depict a rather wrathful version of the Gospel, sung with such good - natured high spirits that they have an ironic appeal to the non-religious.
who wrote it is no secret what god can do
Hamblen