'Covenant' in the Bible

I prayed to the LORD my God, confessing in this way: "O Lord, great and awesome God who is faithful to his covenant with those who love him and keep his commandments,

He will confirm a covenant with many for one week. But in the middle of that week he will bring sacrifices and offerings to a halt. On the wing of abominations will come one who destroys, until the decreed end is poured out on the one who destroys."

Armies will be suddenly swept away in defeat before him; both they and a covenant leader will be destroyed.

Then the king of the north will return to his own land with much property. His mind will be set against the holy covenant. He will take action, and then return to his own land.

The ships of Kittim will come against him, leaving him disheartened. He will turn back and direct his indignation against the holy covenant. He will return and honor those who forsake the holy covenant.

Then with smooth words he will defile those who have rejected the covenant. But the people who are loyal to their God will act valiantly.