When God rests on the seventh day of Creation, it suggests that He is done working. However, He continues working
to this day (John 5:17; 9:3)
in part because of His promises and covenant with Abraham.
The Old Testament, recounting the history of God's people, repeatedly refers to the Abrahamic
Covenant as His promises to Abraham begin to be fulfilled.
Abraham's seed, Jesus Christ, is the subject of the New Testament which ends with the future
and complete fulfillment of the Abrahamic Covenant.
Chosen because of his faith, Abraham would serve God by teaching his children "the way of the Lord."
For I have chosen him, so that he may command his children and his household after him
to keep the way of the Lord by doing righteousness and justice, so that the Lord may bring upon Abraham what He
has spoken about him. (Gen 18:19)
When Abraham's descendants failed to keep the way of the Lord, God kept His promise to Abraham
by making the conditional covenant with Moses to teach the nation of Israel and be His own possession
(Ex 19:5-6; 24:3-8;
And when the nation of Israel failed uphold their covenant to keep the way of the Lord, God
kept His promise to Abraham by making the unconditional New Covenant with the descendants of Abraham
(Jer 31:31-34; Ezek 36:17-27;
To learn more, see:
Divine Covenants… the basis for a plan of salvation
Abraham's Faith and Why God Chose Him to Make His Covenant