He is heard on The Bible Study Hour radio broadcast and was a well-known author and speaker in evangelical and Reformed circles. He also served as Chairman of the International Council on Biblical Inerrancy for over ten years and was a founding member of the Alliance of Confessing Evangelicals.
Sometimes in question and answer periods I am asked whether Christians today are obliged to tithe. I suspect the questioner wants to know how little he must give to Christian causes and how much he can keep for himself. I reply with what I believe to be a proper statement of the case, namely, that the tithe was an Old Testament regulation designed for the support of a particular class of people. It was not carried over into the New Testament. Nowhere in the New Testament are believers instructed to give a specific tenth or any other proportion of their income to Christian projects.
http://www.sermonindex.net/modules/articles/index.php?view=article&aid=2727