Matthew 5:27-28- You have heard that is was said, you shall not commit adultery. But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart.  

Proverbs 6:25- Do not desire her beauty in your heart, and do not let her capture you with her eyelashes.  

Romans 1:24- Therefore God gave them up in the lusts of their hearts to impurity, to the dishonoring of their bodies among themselves.  

Romans 1:26- For this reason God gave them up to dishonorable passions.  For their women exchanged natural relations for those that are contrary to nature.

Romans 1:27- And the men likewise gave up natural relations with women and were consumed with passion of one another, men committed shameless acts with men and receiving in themselves the due penalty for their error.  

Jeremiah 13:27- I have seen your abominations, your adulteries and neighing, your lewd whorings, on the hills in the fields.  Woe to you, O Jerusalem!  How long will it be before you are made clean?