Those verses usually called “The Summons,” were written in 1987 by John Bell and Graham A. Maule. The melody is a Scottish traditional melody called “Kelvingrove.” It is often passionately sung in Scotland and in British Isles. You can sing it alone, or with an unaccompanied choir, or being accompanied on the guitar or the organ. Lyrics are meant to be words of Christ who call for trusting His will entirely. The translation suggested is as far as possible accurate to this divine adjuration of forgetfulness of oneself, regardless of what the others may think.