1 Coríntios 7:1-5 - Bíblia Online

You wrote me a letter. Here is my answer to the things in the letter. It is good if a man has nothing to do with a woman. 
But wrong sex is always a danger to us. So it is better for each man to have his own wife and each woman to have her own husband. 
The husband should give his wife what is right. So also, the wife should give her husband what is right. 
The wife does not have full right over her own body. But her husband has a right to it. In the same way, the husband does not have full right over his own body. But his wife has a right to it. 
Do not keep from the other what is right for them to have. It is all right to stay from each other for a while, if you both agree to it. Then you will have time for prayer. Afterwards, come together again. If you do not, Satan might tempt you to do wrong. 

1 Coríntios 8

You wrote me a letter. Here is my answer to the things in the letter. It is good if a man has nothing to do with a woman. 
But wrong sex is always a danger to us. So it is better for each man to have his own wife and each woman to have her own husband. 
The husband should give his wife what is right. So also, the wife should give her husband what is right. 
The wife does not have full right over her own body. But her husband has a right to it. In the same way, the husband does not have full right over his own body. But his wife has a right to it. 
Do not keep from the other what is right for them to have. It is all right to stay from each other for a while, if you both agree to it. Then you will have time for prayer. Afterwards, come together again. If you do not, Satan might tempt you to do wrong. 

1 Coríntios 8