Darby(i)
15 What is it then? I will pray with the spirit, but I will pray also with the understanding; I will sing with the spirit, but I will sing also with the understanding.
16 Since otherwise, if thou blessest with [the] spirit, how shall he who fills the place of the simple [Christian] say Amen, at thy giving of thanks, since he does not know what thou sayest?
17 For *thou* indeed givest thanks well, but the other is not edified.
18 I thank God I speak in a tongue more than all of you:
19 but in [the] assembly I desire to speak five words with my understanding, that I may instruct others also, [rather] than ten thousand words in a tongue.
20 Brethren, be not children in [your] minds, but in malice be babes; but in [your] minds be grown [men].
21 It is written in the law, By people of other tongues, and by strange lips, will I speak to this people; and neither thus will they hear me, saith the Lord.
22 So that tongues are for a sign, not to those who believe, but to unbelievers; but prophecy, not to unbelievers, but to those who believe.
23 If therefore the whole assembly come together in one place, and all speak with tongues, and simple [persons] enter in, or unbelievers, will not they say ye are mad?
24 But if all prophesy, and some unbeliever or simple [person] come in, he is convicted of all, he is judged of all;
25 the secrets of his heart are manifested; and thus, falling upon [his] face, he will do homage to God, reporting that God is indeed amongst you.
26 What is it then, brethren? whenever ye come together, each [of you] has a psalm, has a teaching, has a tongue, has a revelation, has an interpretation. Let all things be done to edification.
27 If any one speak with a tongue, [let it be] two, or at the most three, and separately, and let one interpret;
28 but if there be no interpreter, let him be silent in [the] assembly, and let him speak to himself and to God.