An excellent summary of the biblical content on speaking in tongues, from a non-charismatic position. Includes a helpful bibliography.
Merrill F. Unger (1909-1980) received ThM and ThD degrees from Dallas Theological Seminary and a PhD from Johns Hopkins. He served in pastoral ministry and later taught at Gordon Divinity School and Dallas Theological Seminary. He is perhaps best known for his classic study and reference volume, Unger's Bible Handbook.