'Eight stringed' in the Bible

For the choir director; with stringed instruments, upon an eight-string lyre. A Psalm of David.O Lord, do not rebuke me in Your anger,Nor chasten me in Your wrath.

For the choir director; upon an eight-stringed lyre. A Psalm of David.Help, Lord, for the godly man ceases to be,For the faithful disappear from among the sons of men.