For those who speak in a tongue do not speak to other people but to God. Indeed, no one understands them; they utter mysteries by the Spirit.
NIV
For one who speaks in an [unknown] tongue speaks not to men but to God, for no one understands or catches his meaning, because in the [Holy] Spirit he utters secret truths and hidden things [not obvious to the understanding].
AMP
For he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries.
KJV
For the foolishness of God is wiser than human wisdom, and the weakness of God is stronger than human strength.
NIV
[This is] because the foolish thing [that has its source in] God is wiser than men, and the weak thing [that springs] from God is stronger than men.
AMP
Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.
KJV
After that, he appeared to more than five hundred of the brothers and sisters at the same time, most of whom are still living, though some have fallen asleep.
NIV
Then later He showed Himself to more than five hundred brethren at one time, the majority of whom are still alive, but some have fallen asleep [in death].
AMP
After that, he was seen of above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep.
KJV
I would like every one of you to speak in tongues, but I would rather have you prophesy. Those who prophesy are greater than those who speak in tongues, unless they interpret, so that the church may be edified.
NIV
Now I wish that you might all speak in [unknown] tongues, but more especially [I want you] to prophesy (to be inspired to preach and interpret the divine will and purpose). He who prophesies [who is inspired to preach and teach] is greater (more useful and more important) than he who speaks in [unknown] tongues, unless he should interpret [what he says], so that the church may be edified and receive good [from it].
AMP
I would that ye all spake with tongues but rather that ye prophesied: for greater is he that prophesieth than he that speaketh with tongues, except he interpret, that the church may receive edifying.
KJV
You say, "Food for the stomach and the stomach for food, and God will destroy them both." The body, however, is not meant for sexual immorality but for the Lord, and the Lord for the body.
NIV
Food [is intended] for the stomach and the stomach for food, but God will finally end [the functions of] both and bring them to nothing. The body is not intended for sexual immorality, but [is intended] for the Lord, and the Lord [is intended] for the body [to save, sanctify, and raise it again].
AMP
Meats for the belly, and the belly for meats: but God shall destroy both it and them. Now the body is not for fornication, but for the Lord; and the Lord for the body.
KJV
Now about virgins: I have no command from the Lord, but I give a judgment as one who by the Lord's mercy is trustworthy.
NIV
Now concerning the virgins (the marriageable maidens) I have no command of the Lord, but I give my opinion and advice as one who by the Lord's mercy is rendered trustworthy and faithful.
AMP
Now concerning virgins I have no commandment of the Lord: yet I give my judgment, as one that hath obtained mercy of the Lord to be faithful.
KJV
And if Christ has not been raised, your faith is futile; you are still in your sins.
NIV
And if Christ has not been raised, your faith is mere delusion [futile, fruitless], and you are still in your sins [under the control and penalty of sin]AMP
And if Christ be not raised, your faith is vain; ye are yet in your sins.
KJV
