God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)
We do not have any honor and glory in our possession that He supposedly lacks, thinking that somehow we are able to give Him what He does not already have inherently and eternally. Our role, our joy, is to ascribe and declare and proclaim to and of Him what He is and always will be.
The assurance of the believer is not that God will save him even if he stops believing, but that God will keep him believing – God will sustain you in faith, He will make your hope firm and stable to the end. He will cause you to persevere.