Bible verses supporting abstinence from porn use

Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. ~Colossians 3:5

1 John 2:16 -
"For all that is in the world - the desires of the flesh and the desires of the eyes and pride of life - is not from the Father but is from the world."

Ephesians 6:11–13 -
"Put on the full armor of God, so that you can take your stand against the devil's schemes. For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms. Therefore put on the full armor of God, so that when the day of evil comes, you may be able to stand your ground, and after you have done everything, to stand."

Ephesians 5:3
3 But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God’s holy people.

Hebrews 13:4
4 Marriage should be honored by all, and the marriage bed kept pure, for God will judge the adulterer and all the sexually immoral.

There are more. I just thought I would get the ball rolling.

Jesus Christ is Lord and Messiah.