Genesis 22:16-17

22:16 and said, “‘I solemnly swear by my own name,’ decrees the Lord, ‘that because you have done this and have not withheld your son, your only son, 22:17 I will indeed bless you, and I will greatly multiply your descendants so that they will be as countless as the stars in the sky or the grains of sand on the seashore. Your descendants will take possession of the strongholds of their enemies.

Genesis 24:7

24:7 “The Lord, the God of heaven, who took me from my father’s house and the land of my relatives, promised me with a solemn oath, ‘To your descendants I will give this land.’ He will send his angel before you so that you may find a wife for my son from there.

Genesis 26:3

26:3 Stay in this land. Then I will be with you and will bless you, for I will give all these lands to you and to your descendants, and I will fulfill the solemn promise I made to your father Abraham.

Deuteronomy 7:8

7:8 Rather it is because of his love for you and his faithfulness to the promise he solemnly vowed to your ancestors that the Lord brought you out with great power, redeeming you from the place of slavery, from the power of Pharaoh king of Egypt.

Deuteronomy 7:12

Promises of Good for Covenant Obedience

7:12 If you obey these ordinances and are careful to do them, the Lord your God will faithfully keep covenant with you as he promised your ancestors.

Psalms 105:9

105:9 the promise he made to Abraham,

the promise he made by oath to Isaac!

Jeremiah 11:5

11:5 Then I will keep the promise I swore on oath to your ancestors to give them a land flowing with milk and honey.” That is the very land that you still live in today.’” And I responded, “Amen! Let it be so, Lord!”

Hebrews 6:16-17

6:16 For people swear by something greater than themselves, and the oath serves as a confirmation to end all dispute. 6:17 In the same way God wanted to demonstrate more clearly to the heirs of the promise that his purpose was unchangeable, and so he intervened with an oath,