The above passage is interesting. Jesus is praying, which is one reason to pay close attention, and these windows into the communion between Father and Son are rare, but amazing. Here Jesus is thanking God for keeping things hidden. And not just anything, but the Gospel. In fact, right before saying the above words He is talking about entire towns being judged by God. Wild.
I can honestly say that I have not thanked God for hiding the ball. Usually it frustrates me. And it frustrates me the most when I am sharing the Gospel. Especially when it is the tenth time and they are still not getting it. I want to scream, "OPEN THEIR EYES, ALREADY!" But that is not how Christ operates. Jesus has complete trust in God's sovereign plan for the unveiling of His Glory. And not only does He trust His father, but Jesus thanks Him for it.
No matter how frustrating it may be to us, God's timing is perfect, and He will decide if, and when, He wants to give them ears to hear and eyes to see. It is not our decision to make. Thanking God for hiding things from the "wise and understanding" is an act of trust...and an act of worship.
With that said, I will do as Christ and thank God for His sovereign plan, but at the same time I will continue to proclaim to all, even the deaf and blind, that Christ is our rest. He is our salvation. You cannot earn it, so stop trying. We receive Grace by Faith, not by works.
"Come to me, all who labor and are heavy laden, and I will give you rest." - Jesus