'New Covenant' in the Bible

Behold, the days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah:

For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah:

And to Jesus the mediator of the new covenant, and to the blood of sprinkling, that speaketh better things than that of Abel.