'Holy Covenant' in the Bible

Then shall he return into his land with great riches; but his heart shall be against the holy covenant; and he shall work his will, and return to his own land.

For the ships of Kittim shall come against him: therefore he shall be grieved, and return, and rage against the holy covenant: so shall he do; he shall even return, and show favor toward them that forsake the holy covenant.

To perform the mercy promised to our fathers, and to remember his holy covenant;