'My Covenant' in the Bible

They have returned to the sins of their ancestors who refused to obey My words and have followed other gods to worship them. The house of Israel and the house of Judah broke My covenant I made with their ancestors.

“This is what the Lord says: If you can break My covenant with the day and My covenant with the night so that day and night cease to come at their regular time,

then also My covenant with My servant David may be broken so that he will not have a son reigning on his throne, and the Levitical priests will not be My ministers.

This is what the Lord says: If I do not keep My covenant with the day and with the night and fail to establish the fixed order of heaven and earth,

As for those who disobeyed My covenant, not keeping the terms of the covenant they made before Me, I will treat them like the calf they cut in two in order to pass between its pieces.