I think this is a "head over heels" phrase.
The phrase "kind and humbling words" appears often enough almost to be an idiom. It refers to words of praise spoken to or about another person.
But just like "head over heels" it seems to have exactly the opposite meaning!
It seems to mean: "You said good things about me, but you are a great person and so your praise means a lot to me. So now I will act very humbly to compensate for such great praise from such a great person like you." So if someone praises you, you have to act humble. If someone raises you up, you have to bow down low.
But, taken literally, it is very odd.