When you receive a suggestion from the enemy that tempts you to sin, you can combat what he says (his lies) with God's Word.

1) To combat the suggestion to look at something pornographic, or to fantasize with pornographic material:

Response from Psalm 101:3-4

I right now refuse to look at anything vile or vulgar. I right now reject any perverse ideas and stay away from every evil. 

Response from Matthew 5:28

The Word of God says that anyone who even looks at a woman or man with lust has already committed adultery with her or him in his heart.

2) To combat the suggestion to have an immoral encounter with someone:

Response from 1 Corinthians 6:19-20

The Word of God says that my body is the temple of the Holy Spirit, who lives in me and was given me by God. I do not belong to myself,for God bought me with a high price. So I will honor God with my body.

Response from 1 Corinthians 6:18

I will flee from sexual immorality. All other sins a person commits are outside the body, but if I sin sexually, I am sinning against my own body. 

3) To combat the suggestion that I am “worthless” or when Satan tries to get me to question my identity:

Response from Psalm 139:13-15, 17-18

God Himself made all the delicate, inner parts of my body and knit me together in my mother’s womb. He made me so wonderfully complex! His workmanship is marvelous—how well I know it. He even watched me as I was being formed in utter seclusion, as I was woven together in the dark of the womb. How precious are God’s thoughts about me. They cannot be numbered! I can’t even count them; they outnumber the grains of sand! And when I wake up, He is still with me!

4) To combat the suggestion that God doesn’t have a purpose for your life, or that you ultimately won’t succeed at anything:

Response from Psalm 139:16

God already saw me before I was born. Every day of my life was recorded in His book. Every moment of my life was laid out before a single day had passed.

Response from Jeremiah 29:11

God says in His word that He knows the plan He has for me! Plans to prosper me and not to harm me plans to give me hope and a future!

5) To combat the suggestion that God’s Word does not stand supreme over all other philosophies, and that He isn’t who he says He is:

Response from Isaiah 55:8-9

The Lord says that His thoughts are nothing like our thoughts, and His ways are far beyond anything we could imagine. For just as the heavens are higher than the earth, so His ways are higher than our ways and His thoughts higher than our thoughts.

Response from 1 Corinthians 1:20-21, 27

So where does this leave the philosophers, the scholars, and the world’s brilliant debaters? God has made the wisdom of this world look foolish. Since God in his wisdom saw to it that the world would never know him through human wisdom, he has used our foolish preaching to save those who believe. Instead, God chose things the world considers foolish in order to shame those who think they are wise. And he chose things that are powerless to shame those who are powerful.