articles/new-age/should- christians-participate-in-the- martial-arts-%E2%80%93-three- testimonies/
My child and I started learning judo together, and we love it. As long as it does not become our idol, it is good and healthy regardless of its origins. A relevant passage from the Bible comes to mind. apostle Paul says you can eat food that may have been offered before idols as long as you pray thanking God for the food.
1 Corinthians 8:4-6 So then, about eating food sacrificed to idols: We know that “An idol is nothing at all in the world” and that “There is no God but one.” 5 For even if there are so-called gods, whether in heaven or on earth (as indeed there are many “gods” and many “lords”), 6 yet for us there is but one God, the Father, from whom all things came and for whom we live; and there is but one Lord, Jesus Christ, through whom all things came and through whom we live.
The passage says that the body was created through the Lord Jesus and "through whom we live".
As a Christian, your conscience will warn you if anything you are doing is against the Holy Spirit. Anything that is straying into Buddhism (for Judo), or Hinduism (for Yoga).
Even so, for some Christians even the slightest connection to pagan origins is enough to condemn the practice of judo, karate, yoga etc.
I suggest you ask them;
Do you celebrate Christmas, and if so, do you have a Christmas tree?
Jeremiah 10: "For the customs of the people are vain: for one cuts a tree out of the forest, the work of the hands of the workman, with the ax. They deck it with silver and with gold; they fasten it with nails and with hammers, that it move not."
That sounds suspiciously like a Christmas tree!