I Know Whom I Have Believed [Music Download] by Twin Sisters Productions. Jun 02, · Of his approximately hymns, "I Know Whom I Have Believed" and "Showers of Blessing" are among the most familiar. James McGranahan wrote the tunes for both of those and for Whittle's "Banner of the Cross" as well. The name of the tune associated with "I Know Whom I Have Believed" is EL NATHAN, Whittle's pseudonym. Listen and Download I Should Have Believed You mp3 - Up to date free I Should Have Believed You songs by eliminarlasvarices.online 1 I know not why God's wondrous grace to me he has made known, nor why, unworthy, Christ in love redeemed me for his own. Refrain: But "I know whom I have believed,Author: D. W. Whittle (). Mar 16, · Classic hymn sung by the Joslin Grove Choral Society. If you like the song, you can buy the mp3 from the itunes store and elsewhere. Song used for worship at our church.