I recently reread the book of Genesis with several teenagers from the church. While discussing it, the most common thing the students brought up was all the weird and terrible things the main characters kept doing:

• Abraham lies about his wife being his sister, and she is almost swept into Pharaoh’s harem
• Lot, while inebriated, impregnates both of his daughters
• Judah sleeps with (who he assumes is) a prostitute, then tries to have her executed
• Jacob deceives his father to steal from his brother, then spends twenty years running from God
• Isaac, like his father, practically sells his wife into an enemy king’s harem to save his own skin

And that’s not the half of it! From cowardice and theft to sexual deviance and murder, they were guilty of it all.

But here’s the beautiful thing… God still blesses them!

Despite their sin, despite their selfishness, despite it all, they are still God’s people.

Why?

Because God made a promise. God promised some idol worshipper named Abram that if he forsook his previous life and followed after the one true God, that God would bless Abram and all his descendants after him (Genesis 12:1-3). And Abram, while certainly not perfect, followed God (Genesis 12:4). Abram, though he occasionally faltered, believed what God had said (Genesis 15:6). And God kept His promise.

And an entire family, an entire people, an entire nation was blessed because of it.

And the Lord said, “I will be with you and bless you. And I will make your descendants multiply as the stars of heaven. And in your seed all the nations of the earth shall be blessed, because Abraham obeyed My voice.” (Genesis 26:2-5)

There are two lessons to learn from this:

1. You are blessed because God made a promise.

If you’re anything like me, you’re probably not perfect. You make mistakes. You slip up. But guess what? In spite of all that, God will still bless you. Why? Because of someone else’s faithfulness.

If you are Christ’s, then you are Abraham’s seed, and heirs according to the promise. (Galatians 3:29)

2. The choices you make will bless your family for generations to come.

Over four thousand years ago, some guy in the desert listened to God, and God blessed him. His wife didn’t always listen to God, but God blessed her because anyway. His kids didn’t usually listen to God, but God blessed them anyway. His nephew didn’t listen to God, but God blessed them anyway. His grandkids and great-grandkids ran from God and disobeyed Him, but God blessed them anyway. And four thousand years later, a world that largely ignores God is still being blessed by Him. All because of a promise God made:

In you all the families of the earth shall be blessed. (Genesis 12:3)

Your obedience affects those around you. Your faithfulness will transcend your short time on earth. So don’t just live for yourself. Live for your family. Live for your community. Live for the generations that are yet to come. They are counting on you.