This is the New Covenant, mediated by Jesus through His blood (see Luke 22:20; Heb. 10:16,17). Through the gospel God’s perfect Law is written upon our hearts, causing us to walk in His statutes. This is wonderful beyond words. This is why the true convert delights to seek and save that which is lost. Evangelism is both an expression of love for God and love for one’s neighbor. That is the essence of the Law of God.
Jeremiah 31:33 But this is the covenant that I will make with the house of Israel after those days, says the Lord: I will put My law in their minds, and write it on their hearts; and I will be their God, and they shall be My people.