Debuting on the "Billboard" Hot 100 dated September 30, 1967, "Everlasting Love" had already reached No. 1 in Philadelphia and Detroit by the time of its Top 40 debut on October 21, 1967. Cason admitted that the single "drove ... the promotion guys nuts since it hit in one market then several weeks later pop up somewhere else." The track spent its second week at its Hot 100 peak of No. 13 on the chart dated November 25, 1967 then dropped off the Hot 100 over the next three weeks. The R&B chart peak of "Everlasting Love" was No. 14. In its original release, Knight's "Everlasting Love" lost out in the UK to a cover by Love Affair, although Knight's version did spend two weeks at No. 40 UK in January 1968. In the spring of 1974, Knight's "Everlasting Love" had a second UK release to follow up the Top Ten success of the reissue of Knight's "Love on a Mountain Top"; this time the first-named track reached No. 19.