I have had many Ocd themes. This was one for awhile. If you fret it makes it worse. Try this. Say God I have OCD. I think and say stuff about you I dont like. Please forgive me, you know it is not me. I pray this as a lasting prayer until you see me through this. When you start saying or thinking bad thoughts dont be like Oh no! Im bad I need to pray again. You are giving it attention and that will just be a cycle. Just carry on as you would. You have already said a lasting prayer. No need to repeat it. This helped me. I hope it will help you. I am not saying quit praying or going to church or whatever you do. I am just saying freaking out every time you cuss God will just fuel your OCD. I know its hard. (((Hugs))) Also remember Satan likes that you have this OCD. He is trying to drive a wedge between you and God. He wants you to be afraid of God. It messes your relationship with him up. Satan is Yes! Some fear of God is healthy of course. This is not from God though. This is from Satan. Dont give him that power. There is a verse that says something like if it comes from fear its not from God. Maybe you can find it. Best wishes