In the Padma Purana, there is a nice statement praising the service of the Vaisnavas or devotees. In that scripture Lord Siva tells Parvati, “My dear Parvati, there are different methods of worship, and out of all such methods the worship of the Supreme Person is considered to be the highest. But even higher than the worship of the Lord is the worship of the Lord’s devotees.”

From The Nectar of Devotion by Srila Prabhupada