I’m pretty sure Paul was thankful for lots of things. Here’s one that he wrote about in Romans 7:21-8:2
So I find it to be a law that when I want to do right, evil lies close at hand. For I delight in the law of God in my inner being, but I see in my members [his body] another law waging war against the law of my mind and making me captive to the law of sin that dwells in my members. Wretched man that I am! Who will deliver me from this body of death? Thanks be to God through Jesus Christ our Lord! So then, I myself serve the law of God with my mind, but with my flesh I serve the law of sin.
There is therefore now no condemnation for those who are in Christ Jesus. For the law of the Spirit of life has set you free in Christ Jesus from the law of sin and death.