When God made his promise to Abraham, since there was no one greater for him to swear by, he swore by himself, saying, “I will surely bless you and give you many descendants.” And so, after waiting patiently, Abraham received what was promised.

People swear by someone greater than themselves, and the oath confirms what is said and puts an end to all argument.Because God wanted to make the unchanging nature of his purpose very clear to the heirs of what was promised, he confirmed it with an oath. God did this so that, by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope set before us may be greatly encouraged. We have this hope as an anchor for the soul, firm and secure. It enters the inner sanctuary behind the curtain, where our forerunner, Jesus, has entered on our behalf. He has become a high priest forever, in the order of Melchizedek. (New International Version)

“We must accept finite disappointment, but never lose infinite hope.”

Martin Luther King, Jr.

Humanity needs hope. We all require a confident expectation that things will be different or better. Hope is what our ancestors in faith had in abundance.

How did Abraham receive what was promised by God?

Abraham received what was promised because of hope. He believed God’s promise of having a place to belong. His faith caused him to make a major move from the city where he had always lived. What’s more, Abraham understood that the promises of God don’t end in this life. He looked forward to being a permanent resident in the eternal city.

By faith Abraham obeyed when he was called to go out to a place that he was going to receive as an inheritance. He went out without knowing where he was going. By faith he lived in the land he had been promised as a stranger. He lived in tents along with Isaac and Jacob, who were coheirs of the same promise. He was looking forward to a city that has foundations, whose architect and builder is God. (Hebrews 11:8-10, CEB)

Why did God swear an oath to Abraham?

The Lord wanted to reinforce Abraham’s faith and encourage him. God desired to convincingly show that divine promises are sure.

The Lord spoke to Abram in a vision and said to him, “Do not be afraid, Abram, for I will protect you, and your reward will be great.” But Abram replied, “O Sovereign Lord, what good are all your blessings when I don’t even have a son?…. You have given me no descendants of my own, so one of my servants will be my heir.”

Then the Lord said to him, “No, your servant will not be your heir, for you will have a son of your own who will be your heir.” Then the Lord took Abram outside and said to him, “Look up into the sky and count the stars if you can. That’s how many descendants you will have!” And Abram believed the Lord, and the Lord counted him as righteous because of his faith. (Genesis 15:1-6, NLT)

What are the “two unchangeable things?”

The promise and the oath. God promised to Abraham:

“I will make you into a great nation,
    and I will bless you;
I will make your name great,
    and you will be a blessing.
I will bless those who bless you,
    and whoever curses you I will curse;
and all peoples on earth
    will be blessed through you.”(Genesis 12:2-3, NIV)

God confirmed the promise with an oath:

“I swear by myself, declares the Lord, that because you have done this and have not withheld your son, your only son, I will surely bless you and make your descendants as numerous as the stars in the sky and as the sand on the seashore. Your descendants will take possession of the cities of their enemies, and through your offspring all nations on earth will be blessed, because you have obeyed me.” (Genesis 22:16-18, NIV)

Is there a way to be motivated and encouraged in the Christian life?

Yes. Hope in God’s promises and the confidence that our efforts to live for Christ are being seen and they are not in vain. We need one another. So, it is important to maintain significant relationships with other believers so that we will not lose our spiritual vitality and become discouraged. The author of Hebrews also stated:

We should keep on encouraging each other to be thoughtful and to do helpful things. Some people have gotten out of the habit of meeting for worship, but we must not do that. We should keep on encouraging each other, especially since you know that the day of the Lord’s coming is getting closer. (Hebrews 10:24-25, CEV)

Faith and patience, fueled by an unshakable hope, has always been the way believers have lived their lives. For the Christian, we have a promised inheritance, focused on the person and work of Christ. All of God’s good promises are fulfilled in Jesus.

God of hope, in these times of change, unite us and encourage us with your promise and oath. Help us overcome our fears and enable us to build a future in which all may prosper and share, through Jesus Christ our Lord. Amen.