The Pulpit Commentary - 1 Corinthians 14:15
What is it then? A phrase like the Latin quorsum haec? What is the purport of my exhortations? I will sing. This shows that the glossolaly sometimes took the form of singing. With the understanding also. When we worship or sing we must indeed "worship in spirit," but also worship and "sing praises with understanding" ( Psalms 47:7 ; John 4:24 ). read more
The Pulpit Commentary - 1 Corinthians 14:14-22
Further enforcement of the argument. At this point in the discussion St. Paul refers to the distinction between the spirit and the understanding. Such a distinction must be recognized or his argument has no basis in the nature of the human mind, and, if there be no foundation in the laws of the mind for this difference between Spirit and understanding, the operations of the Holy Spirit in the two forms under notice are inconceivable. Man has a spirit—a power of introversion that withdraws... read more