8God finds fault with them when he says: “The days are surely coming, says the Lord, when I will establish a new covenant with the house of Israel and with the house of Judah; 9not like the covenant that I made with their ancestors, on the day when I took them by the hand to lead them out of the land of Egypt; for they did not continue in my covenant, and so I had no concern for them, says the Lord. 10This is the covenant that I will make with the house of Israel after those days, says the Lord: I will put my laws in their minds, and write them on their hearts, and I will be their God, and they shall be my people. 11And they shall not teach one another or say to each other, ‘Know the Lord,’ for they shall all know me, from the least of them to the greatest. 12For I will be merciful toward their iniquities, and I will remember their sins no more.” 13In speaking of “a new covenant,” he has made the first one obsolete. And what is obsolete and growing old will soon disappear. (Hebrews 8:8-13, NRSV)
I always have an issue with this verse and the fact we still do Sunday School. We teach about God, but this passage says that they shall not teach on another, for we will all know.
So does that mean that the new covenant has not been established yet?
And how many of us really know the Lord? If we did know the Lord would we be doing things for our own interests or would we be living as Jesus taught us?