“Power in the Blood” — properly “There Is Power in the Blood” — is an evangelical hymn written in 1899 by Lewis E. Jones, a gospel songwriter trained at the Moody Bible Institute. By the usual account, Jones wrote it at a camp meeting in the Maryland mountains, struck by a preacher’s phrase about the power in the blood of Christ.
The hymn is a rousing one, its surging chorus built around the cleansing, liberating power of Christ’s atonement. That energy made it a standard of revival meetings and church singing, and it became Jones’s best-known song among the more than two hundred hymns he wrote.
The hymn passed readily into country and bluegrass gospel, where its drive and its singable chorus suited a hard, up-tempo treatment. The version heard here is by Weary Hearts, recorded for a bluegrass gospel collection.