Seems clear from 1 Cor. 141 Corinthians 14
[14:1]Pursue love, and earnestly desire the spiritual
gifts, especially that you may prophesy. [2]For one who
speaks in a tongue speaks not to men but to God; for no one
understands him, but he utters mysteries in the Spirit.
[3]On the other hand, the one who prophesies speaks to
people for their upbuilding and encouragement and
consolation. [4]The one who speaks in a tongue builds up
himself, but the one who prophesies builds up the church.
[5]Now I want you all to speak in tongues, but even more to
prophesy. The one who prophesies is greater than the one
who speaks in tongues, unless someone interprets, so that
the church may be built up.
[6]Now, brothers, if I come to you speaking in tongues,
how will I benefit you unless I bring you some revelation
or knowledge or prophecy or teaching? [7]If even lifeless
instruments, such as the flute or the harp, do not give
distinct notes, how will anyone know what is played? [8]And
if the bugle gives an indistinct sound, who will get ready
for battle? [9]So with yourselves, if with your tongue you
utter speech that is not intelligible, how will anyone know
what is said? For you will be speaking into the air.
[10]There are doubtless many different languages in the
world, and none is without meaning, [11]but if I do not
know the meaning of the language, I will be a foreigner to
the speaker and the speaker a foreigner to me. [12]So with
yourselves, since you are eager for manifestations of the
Spirit, strive to excel in building up the church.
[13]Therefore, one who speaks in a tongue should pray
for the power to interpret. [14]For if I pray in a tongue,
my spirit prays but my mind is unfruitful. [15]What am I to
do? I will pray with my spirit, but I will pray with my
mind also; I will sing praise with my spirit, but I will
sing with my mind also. [16]Otherwise, if you give thanks
with your spirit, how can anyone in the position of an
outsider say "Amen" to your thanksgiving when he does not
know what you are saying? [17]For you may be giving thanks
well enough, but the other person is not being built up.
[18]I thank God that I speak in tongues more than all of
you. [19]Nevertheless, in church I would rather speak five
words with my mind in order to instruct others, than ten
thousand words in a tongue.
[20]Brothers, do not be children in your thinking. Be
infants in evil, but in your thinking be mature. [21]In the
Law it is written, "By people of strange tongues and by the
lips of foreigners will I speak to this people, and even
then they will not listen to me, says the Lord." [22]Thus
tongues are a sign not for believers but for unbelievers,
while prophecy is a sign not for unbelievers but for
believers. [23]If, therefore, the whole church comes
together and all speak in tongues, and outsiders or
unbelievers enter, will they not say that you are out of
your minds? [24]But if all prophesy, and an unbeliever or
outsider enters, he is convicted by all, he is called to
account by all, [25]the secrets of his heart are disclosed,
and so, falling on his face, he will worship God and
declare that God is really among you.
[26]What then, brothers? When you come together, each
one has a hymn, a lesson, a revelation, a tongue, or an
interpretation. Let all things be done for building up.
[27]If any speak in a tongue, let there be only two or at
most three, and each in turn, and let someone interpret.
[28]But if there is no one to interpret, let each of them
keep silent in church and speak to himself and to God.
[29]Let two or three prophets speak, and let the others
weigh what is said. [30]If a revelation is made to another
sitting there, let the first be silent. [31]For you can all
prophesy one by one, so that all may learn and all be
encouraged, [32]and the spirits of prophets are subject to
prophets. [33]For God is not a God of confusion but of
peace.
As in all the churches of the saints, [34]the women
should keep silent in the churches. For they are not
permitted to speak, but should be in submission, as the Law
also says. [35]If there is anything they desire to learn,
let them ask their husbands at home. For it is shameful for
a woman to speak in church.
[36]Or was it from you that the word of God came? Or are
you the only ones it has reached? [37]If anyone thinks that
he is a prophet, or spiritual, he should acknowledge that
the things I am writing to you are a command of the Lord.
[38]If anyone does not recognize this, he is not
recognized. [39]So, my brothers, earnestly desire to
prophesy, and do not forbid speaking in tongues. [40]But
all things should be done decently and in order. (ESV)

that uninterpreted tongues in a public meeting causes confusion and isn’t appropriate. Although Paul spoke in tongues more than many of the Corinthians, he said “in church I would rather speak five words with my mind in order to instruct others, than ten thousand words in a tongue.”

Since it would be impossible to know whether something I was going to say in tongues as I’m leading a meeting would be interpreted, it’s better to focus on saying things that people can understand.

Hello! I’m really enjoying the accessibility of your blog. This is a great article. Is there any other book/resource you would recommend that addresses specifically worship leaders in a biblical way like this? There’s a lot of great books out there about worship in the church, but are you aware of anything that extensively brings theology to bear on the practical outworkings of a worship leader’s responsibilities?

Thanks!

Also, I’d be really interested in your comments (and your readers’ comments) on something I have just blogged about at http://danhames.blogspot.com/2006/02/pelagius-invades-church-music.html.

Thank you for spurring us on.

Dan

I’ve been reading your blog/website here for some time now and thought I’d comment to say how much help you have been to me & my local church and campus ministry. Your series here on the role of the lead worshipper is organizing into words so much of what I’ve only learned about lead worshipping through my past 10years of leading.

You could say I’m at the top of the food chain in my local ministry here in Toronto at my church & university fellowship; nobody has really mentored or taught me specific what/how to lead. Thank you for your insight.

Looking forward to your next post..SDG.
-Alex Leung
Toronto, ON, Canada