I find he is far liberal and no need of martial arts for  a Christian!  It is for fighting and we have a far different fight.

Eph 6:12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
Eph 6:13 Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand.
Eph 6:14 Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness;
Eph 6:15 And your feet shod with the preparation of the gospel of peace;
Eph 6:16 Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
Eph 6:17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God:

The new Adventism may condone such, for me, no!

1Jo 4:4 ¶ Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.

Looking up - ivor myers martial arts religion christian on YouTube found these links RE martial arts verses Christianity.

When I was a warlock I learned that :

In the occult the stronger mind always possesses or conquerors / vanquishes the weaker mind .  - paraphrase from memory - said by - Tuesday Lobsang Rampa - from the book "Seth Speaks" automatic writing channeled by Jane Montgomery.

Martial  Arts & Yoga is the practices of inviting the fallen spirits into one's self, and channeling their powers to accomplish one's will and in return they are given obedience  IE mastery over you and ownership of you.   The opposite of the work, aims, mission, destination of the everlasting gospel and present truth.  The lust for power that God did not give, drove Eve to sin, and seduce her husband to yield himself and all humanity to Satan.    Martial arts & yoga are the same forbidden fruit with an asian name, but the same poison inside.

Exodus 20:5  Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;

Exodus 23:24  Thou shalt not bow down to their gods, nor serve them, nor do after their works: but thou shalt utterly overthrow them, and quite break down their images.

Deuteronomy 5:9  Thou shalt not bow down thyself unto them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me,

2 Kings 17:35  With whom the LORD had made a covenant, and charged them, saying, Ye shall not fear other gods, nor bow yourselves to them, nor serve them, nor sacrifice to them:

All asian martial arts and yogas and religions > have tiers of non divine masters to bow to and serve and do after their ways > all such is utterly forbidden. 

To fear God > look at Deuteronomy 10:12-16.  Unpacking Biblically fearing God > four posts in a blog

http://feargodbibletexts.blogspot.com/2011/08/fearing-god-466-kjv-texts-and-counting.html

http://feargodbibletexts.blogspot.com/2011/08/fearing-god-explaining-concept.html

http://feargodbibletexts.blogspot.com/2011/08/fear-god-explaining-concept-part-2.html

http://feargodbibletexts.blogspot.com/2011/08/spiritual-courage-to-biblically-fear.html

Biblically fearing God we are commanded to do as our duty as created creatures is does not earn merit, loving God, learning God's ways and obedience are part of but not all of fearing God. 

We are forbidden to learn to love Satan, and Satan's ways, and obey him.  

"Abel did not try to force Cain to obey Gods command. It was Cain, inspired by Satan and filled with wrath, who used force. Furious because he could not compel Abel to disobey God and because God had accepted Abels offering and refused his, which did not recognize the Saviour, Cain killed his brother. {CTr 35.6} "

" Trial and persecution will come to all who, in obedience to the Word of God, refuse to worship this false sabbath. Force is the last resort of every false religion. At first it tries attraction, as the king of Babylon tried the power of music and outward show. If these attractions, invented by men inspired by Satan, failed to make men worship the image, the hungry flames of the furnace were ready to consume them. So it will be now. The papacy has exercised her power to compel men to obey her, and she will continue to do so. We need the same spirit that was manifested by God's servants in the conflict with paganism (ST May 6, 1897).  {7BC 976.9} "

Read   {2T 171.2 -172.2 }

Q. What is the object of martial arts ?   A. Superhuman power 

Q. Does the Bible promise this kind of power ?    

A.  2 Corinthians 6:15  And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?

16  And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.

17  Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,

18  And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.

 1 Corinthians 10:21  Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lords table, and of the table of devils.

To have victory in martial arts you must partake from the source of martial arts & yoga -  Satan.