No, 'Whither Thou Goest' is not the song I was referring to. I wasn't able to find the lyrics, but it's highly possible that both 'Whither Thou Goest' and 'Wherever you go' are both based on the same Bible verses. Those verses from Ruth are very popular at weddings, espceically Interfaith weddings.

'Wherever you go'is a very common Catholic 'Folk' Hymn composed by Gregory Norbet formerly of Weston Priory in Vermont. It became hugely popular in the mid to late 1970s and is now one of the more common songs sung at Catholic Weddings. If you search on the title and the last name of 'norbet', you'll find most of the online references are from individual Catholic parishes who are providing lists of acceptible songs for weddings.

'Wherever you go' is really a lovely song and woth seeking out. I don't know which CD it's on.. maybe LISTEN or LOCUSTS AND HONEY. You can find it by going to the music page at:
Weston priory Webpage

Joe Offer is porbably familiar with this song and maybe Sinsull too.