Why can it be good to have a 'thorn'?

2 Chorinthians 12:6-7

6 Though if I should wish to boast, I would not be a fool, for I would be speaking the truth. But I refrain from it, so that no one may think more of me than he sees in me or hears from me.7 So to keep me from becoming conceited because of the surpassing greatness of the revelations, a thorn was given me in the flesh, a messenger of Satan to harass me, to keep me from becoming conceited.

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Why didn't God take this "thorn" away?

It seems like it was the thing that kept him from thinking to highly off himself. That if he hadn't had this thorn he would think he was better and that the things he did was all him.

What are some of the hard things in your life that God (because he loves you so much) might be using to teach you? What are you learning?

I find it hard to trust people, almost any people. He might use it to help me trust in Him more. Because He will never do anything 'bad' towards me. I am learning that I do have to trust people, giving them a chance to show that they are not my past. And I learn that there are only things in myself I can change. He is also learning me patiente, there is a lot of trust in waiting...

Till next time,
God Bless