'Holy Covenant' in the Bible

And he shall return to his land with great riches. And his heart shall be against the holy covenant. And he will act, and he shall return to his land.

For the ships of Kittim shall come against him. And he shall be grieved and return, and have fury against the holy covenant. So he shall do; he shall even return and give heed to those who forsake the holy covenant.

to perform the mercy promised to our fathers, and to remember His holy covenant,