Instrumental case of nouj. Paul is distinctly in favour of the use of the intellect in prayer. I will pray with the spirit, and I will pray with the understanding also. He enforces the argument with several reasons. This is saying Amen, So be it.
Children are apt to be struck with novelty and strange appearances.
They are taken with an outward show, without enquiring into the true nature and worth of things. Third class condition. Note here, This shows that audible responses to the praises and thanksgivings were the custom of the church. I will pray with the spirit, but I will pray with the understanding also I will use my own understanding, as well as the power of the Spirit. I will not act so absurdly, as to utter in a congregation what can edify none but myself.