The Lord said to Abraham,
“I am the LORD, who brought you out of Ur of the Chaldeans, to give you this land to inherit it” (Genesis 15:7).
Abraham was never to forget the Lord, and what He had done for Abraham and what the Lord was about to do.
The Lord kept His word to the patriarch, although it took many years for its fulfillment, because the Lord has His own timeframe and purposes.
Likewise, when you read in the Scripture a promise from the Lord, remember who He is and that He keeps His promises, fulfilling them in the right way at the right time.