First recorded by David & Jonathan (1967).
Hit version by English Congregation (US #29/UK #4/NZ #1/SA #1 1971), Paul Young (UK #21 1990).
From the wiki: “During their period as David & Jonathan, writers Roger Cook and Roger Greenaway (‘You Got Your Troubles’, ‘I’d Like to Teach the World to Sing‘) recorded early versions of many of their songs that became hits for others including ‘Softly Whispering I Love You’, first recorded by the duo in 1967 but covered more popularly in 1971 by a group of their own creation, English Congregation, whose recording charted in the UK Top 5 and US Billboard Hot 100. The Congregation recording topped the New Zealand and South Africa music charts, too, that year. Paul Young’s 1990 cover barely missed the UK Top 20 in 1990.”
English Congregation, “Softly Whispering I Love You” (1971):
Paul Young, “Softly Whispering I Love You” (1990):