'Promise' in the Bible

Therefore, as long as the promise of entering his rest remains valid, let us be afraid! Otherwise, some of you will fail to reach it,

For when God made his promise to Abraham, he swore an oath by himself, since he had no one greater to swear by.

In the same way, when God wanted to make the unchangeable character of his purpose perfectly clear to the heirs of his promise, he guaranteed it with an oath,

Let us continue to hold firmly to the hope that we confess without wavering, for the one who made the promise is faithful.

By faith he made his home in the promised land like a stranger, living in tents, as did Isaac and Jacob, who also inherited the same promise,

By faith Sarah, even though she was old and barren, received the strength to conceive, because she was convinced that the one who had made the promise was faithful.