1. I know not why God's wondrous grace to me he hath made known, nor why, unworthy, Christ in love redeemed me for his own. Refrain: But I know whom I have believed, and am persuaded that he is able to keep that which I've committed unto him against that day. 2. I know not how this saving faith to me he did impart, nor how believing in his word wrought peace within my heart. (Refrain) 3. I know not how the Spirit moves, convincing us of sin, revealing Jesus through the word, creating faith in him. (Refrain) 4. I know not when my Lord may come, at night or noonday fair, nor if I walk the vale with him, or meet him in the air. (Refrain)