“[ …] They will no longer teach each one his fellow citizen and each one his brother, saying: ‘Know Jehovah!’ For they will all know me, from the least to the greatest of them.”
~Hebrews 8:11

How is Jeremiah’s prophecy being fulfilled under God’s covenant with annointed Christians?
Annointed Christians show they have God’s law written in their hearts through their preaching work and actions. (Jer. 31:33; Heb. 8:10)
When those of us who do not have a heavenly hope learn about Jehovah, obey him and develop faith, we too come to have his law written in our hearts. (John 17:3; Heb. 11:6; 1 John 5:3)
We do not rely on human teachings, but on the truths found in his Word. (2 Tim. 3:16,17)
He answers our prayers through principles we learn in our study of the Scriptures and when we rely on him in our times of need.
As a result, each one of Jehovah’s Witnesses has the privilege of a personal relationship with Jehovah God through his new kingdom covenant. (Rom. 8:19-21)