'Covenant' in the Bible

and I prayed unto Jehovah my God, and made my confession, and said, Alas Lord! the great and terrible God, keeping covenant and loving-kindness with them that love him, and that keep his commandments:

And he shall confirm a covenant with the many for one week; and in the midst of the week he shall cause the sacrifice and the oblation to cease, and because of the protection of abominations there shall be a desolator, even until that the consumption and what is determined shall be poured out upon the desolate.

And the overflowing forces shall be overflowed from before him, and shall be broken: yea, also the prince of the covenant.

And he shall return into his land with great substance; and his heart shall be against the holy covenant; and he shall practise, and return to his own land.

for ships of Chittim shall come against him; and he shall be grieved, and return, and have indignation against the holy covenant; and will practise; and he shall return and direct his attention to those that forsake the holy covenant.

And such as do wickedly against the covenant shall he pervert by flatteries; but the people that know their God shall be strong, and shall act.