How do we know the promise of being taught by God is true?

The truth of the promise that all believers will be taught of God is reinforced by Scripture. In Isaiah 54:13, it is declared that 'all thy children shall be taught of the Lord,' which finds its New Testament fulfillment in John 6:45, where Jesus declares that those who learn of the Father will come to Him. This emphasizes that true understanding of God comes not from human wisdom but through divine revelation, as the Holy Spirit teaches and convicts the hearts of believers, ensuring they grasp the fullness of the gospel and experience peace.