Clark H. Pinnock, Ph. D., is professor of Systematic Theology at McMaster Divinity College, Hamilton, Ontario, Canada. Among his publications are: The Scripture Principle, Harper & Row, 1984; Reason Enough: A Case for the Christian Faith, InterVarsity Press, 1980; (editor) Grace Unlimited, Bethany Fellowship, 1975; Truth on Fire, The Message of Galatians, Baker Book House, 1972, Biblical Revelation, Moody Press, 1971, Set Forth Your Case, Craig, 1968; and A Defense of Biblical Infallibility, Presbyterian and Reformed, 1967.