'Covenant' in the Bible

I prayed to the Lord my God and confessed:Ah, Lord—the great and awe-inspiring God who keeps His gracious covenant with those who love Him and keep His commands—

He will make a firm covenantwith many for one week,but in the middle of the weekhe will put a stop to sacrifice and offering.And the abomination of desolationwill be on a wing of the templeuntil the decreed destructionis poured out on the desolator.”

A flood of forces will be swept away before him; they will be shattered, as well as the covenant prince.

The king of the North will return to his land with great wealth, but his heart will be set against the holy covenant; he will take action, then return to his own land.

Ships of Kittim will come against him, and being intimidated, he will withdraw. Then he will rage against the holy covenant and take action. On his return, he will favor those who abandon the holy covenant.

With flattery he will corrupt those who act wickedly toward the covenant, but the people who know their God will be strong and take action.