Masturbation is the act of stimulating one's genitals by one's self for sexual pleasure.
It includes the use of hands, and objects like vibrators for sexual stimulation. It is simply engaging in any activity that brings sexual pleasure without the contribution of another partner.

Masturbation is filthy and sinful because:

1. IT IS A CLEAR INDICATION OF LUST AND INORDINATE AFFECTION
Lust is simply having strong sexual desire, while an inordinate affection is an unrestrained feeling of likeness for something.

Masturbation is usually brought about by an unrestrained, unbridled and uncontrolled immoral desire. You can't masturbate If your desires, cravings, longings and thoughts are pure, holy and godly.
You masturbate because you are lewd, lascivious and libidinous. Can someone who has these qualities be referred to as a child of God? No of course, because If such a person(with all those qualities)
is presented with the chance to commit fornication or adultery, he/she would do so.

A christain cannot be lascivious, libidinious, lewd and licentious, because 'they that are Christ's have crucified the flesh with the(inordinate) affections and lust(Gal.5:24).
It is sinful, wordly and ungodly to have an iota of Lust in us as christians(mtt.5:28, 1John2:16, Titus2:12).

2. IT IS AN UNCLEAN ACT
There is nothing actually pure or godly about masturbation, nothing, absolutely nothing. It is an unclean, filthy, dirty, impure, lewd and wanton act.
If you have ever been trapped in masturbation, how do you feel after the act? Messed up of course, you feel unclean and dirty. You are condemned right away in your heart. Your spirit immediately bears you witness that you have sinned.

Masturbation therefore, as an unclean act is sinful because '...no whoremonger, nor UNCLEAN person,...has any inheritance in the kingdom of Christ and of God'(Eph.5:5)
'But fornication and all UNCLEANNESS...let it not be once named among you, as become saints. For God has not called us to UNCLEANNESS but to holiness'(Eph.5:3, 1Thes.4:7).

Are you struggling with masturbation? God has delivered many and He is still doing the same.
Firstly, Acknowledge your sins, repent of it(regret and sincerely feel sorrowful about it and make up your mind not to go back to it), confess it, ask for forgiveness and believe in your heart that Jesus died and rose to remit your sins. After this;

1. Go to God in prayers(and fasting, as the case may be) concerning this issue.

2. Keep off pornographic materials, movies and programs(either slight or extreme ones) and avoid friends that crack filthy jokes. Also avoid lustful-looking and stop listening to songs with vulgar words in them.

3. Make sure you are not idle(always fill your mind with the right material, especially with God's word). An Idle mind, they say, is the devil's workshop.

4. Whenever you are tempted to indulge in it(especially in the night), stand up and get busy with something edifying(like the bible, christian magazines and movies) until you eventually fall asleep.

As you constantly do all these, masturbation will eventually become a thing of the past.

For more demystified undiluted word of God u can like: www.facebook.com/holinessfromall

God bless you OP

Op, God bless you for speaking Truth

While many christian converts are careful to avoid po.rn.gra.phy and self-- service. Some man of what I don't know sees nothing ungodly in it.
I am still waiting for Rev Chris Oyakhilome to APOLOGIZE to Christians world over for conceiving and teaching that.
His apology should have statements where he will be humble enough to say that the Holy Spirit didn't direct him to teach such things, that they were products of his human mind.