'Promise' in the Bible

Then they said, “We will give it back and will require nothing from them; we will do exactly as you say.” So I called the priests and took an oath from them that they would do according to this promise.

I also shook out the front of my garment and said, “Thus may God shake out every man from his house and from his possessions who does not fulfill this promise; even thus may he be shaken out and emptied.” And all the assembly said, “Amen!” And they praised the Lord. Then the people did according to this promise.

“You found his heart faithful before You,And made a covenant with himTo give him the land of the Canaanite,Of the Hittite and the Amorite,Of the Perizzite, the Jebusite and the Girgashite—To give it to his descendants.And You have fulfilled Your promise,For You are righteous.