The God of Abraham, Isaac, and Jacob

I used to wonder why God would refer to himself as "the God of Jacob" or "the God of Abraham, Isaac, and Jacob"... I mean I guess I knew the bible history behind it, but it always seemed weird for Him to say that generations later. But I'm realizing that that was the whole point.

He was Creator and Sustainer of your father's generation, and HIS father's generation, and HIS father's generation.
He was faithful to your father's generation, and HIS father's generation, and HIS father's generation.
He showed mercy to your father's generation, and His father's generation, and HIS father's generation.

He IS.

He always will BE.

He stands apart from His creation called time, yet He chooses to be a part of it.

He is the God of Abraham, Isaac, and Jacob.