'Covenant' in the Bible

Abner sent messengers as his representatives to say to David, “Whose land is it? Make your covenant with me, and you can be certain I am on your side to hand all Israel over to you.”

David replied, “Good, I will make a covenant with you. However, there’s one thing I require of you: Do not appear before me unless you bring Saul’s daughter Michal here when you come to see me.”

Abner said to David, “Let me now go and I will gather all Israel to my lord the king. They will make a covenant with you, and you will rule over all you desire.” So David dismissed Abner, and he went in peace.

So all the elders of Israel came to the king at Hebron. King David made a covenant with them at Hebron in the Lord’s presence, and they anointed David king over Israel.

And lo Zadok also, and all the Levites were with him, bearing the ark of the covenant of God: and they set down the ark of God; and Abiathar went up, until all the people had done passing out of the city.

So the king called the Gibeonites and spoke to them (now the Gibeonites were not of the sons of Israel but of the remnant of the Amorites, and the sons of Israel made a covenant with them, but Saul had sought to kill them in his zeal for the sons of Israel and Judah).

Although my house be not so with God; yet he hath made with me an everlasting covenant, ordered in all things, and sure: for this is all my salvation, and all my desire, although he make it not to grow.