This lesson teaches children that God keeps every promise He makes, even when it takes a long time. Genesis 21 tells how God gave Abraham and Sarah the son He had promised. It suits children aged about 5 to 11 and takes 20 to 30 minutes.
Big Idea
God always keeps His promises, and He is never late. He does things at exactly the right time. We can trust Him to do what He says.
Memory Verse
Genesis 21:1
The LORD visited Sarah as he had said, and the LORD did to Sarah as he had spoken.
(WEB)
Have children hold both hands out flat, then slowly clasp them together as they say the words, showing God keeping His promise. Repeat it three times, getting a little softer each time, until the whole class is whispering it.
The Story: Genesis 21 for Kids
Abraham and Sarah were very old, and they had no children. God had promised them a son, and they had waited for many, many years. Sometimes it felt like the promise would never come true. But God had not forgotten.
Then one day, God did just what He said He would. Sarah had a baby boy! They named him Isaac, which means “he laughs.” Sarah was so happy that she said, “God has made me laugh, and everyone who hears about this will laugh with me!”
Isaac grew up, and on the day he stopped drinking only milk, Abraham held a big party. There was lots of food and lots of happy people. Everyone was glad to see the boy God had given them.
But there was a problem. Sarah saw Ishmael, the son of Abraham and their servant Hagar, playing in a way that was unkind to Isaac. Sarah was upset and said, “Send them away!” Abraham was sad about this, but God told him to listen to Sarah, and He promised to take care of Ishmael too.
So Abraham gave Hagar some bread and water, and she and Ishmael went out into the desert. The water ran out, and Hagar was scared. She sat a little way off because she did not want to see her boy die, and she cried. But God heard the boy’s voice. An angel called to Hagar from heaven and said, “Do not be afraid. God has heard your son. Get up and help him!”
Then God opened Hagar’s eyes, and she saw a well of water right there. She filled her bottle and gave Ishmael a drink. God was with the boy as he grew up, just as He had said.
Read It Together
Genesis 21:2
Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
(WEB)
Point out that God did exactly what He said, at exactly the set time. Ask children to notice the word “promised” and talk about how Abraham and Sarah had to wait a long time for the baby.
Genesis 21:17-19
17 God heard the voice of the boy. The angel of God called to Hagar out of the sky, and said to her, “What ails you, Hagar? Don’t be afraid. For God has heard the voice of the boy where he is. 18 Get up, lift up the boy, and hold him in your hand. For I will make him a great nation.” 19 God opened her eyes, and she saw a well of water. She went, filled the bottle with water, and gave the boy drink.
(WEB)
Show children how God heard the crying boy and helped Hagar see the water she needed. Explain that God notices us even when we feel alone or scared in a hard place.
Genesis 21:6
Sarah said, “God has made me laugh. Everyone who hears will laugh with me.”
(WEB)
Let children see Sarah’s joy. Talk about how laughing at something good God has done is a happy response, and ask them to think of a time they felt joyful.
Talk About It
- What did God promise Abraham and Sarah, and how long did they have to wait for it?
- Why do you think Sarah laughed when she held baby Isaac?
- How did God take care of Hagar and Ishmael when the water ran out?
- When have you had to wait a long time for something, and how did it feel?
- What is one thing you can trust God to do for you this week?
Activity Ideas
Draw a Well of Water
You will need paper, crayons or markers, and a pencil. Ask children to draw a desert scene with a small well in the middle and Hagar and Ishmael nearby. Encourage them to draw water coming up from the well, and talk together about how God showed Hagar the water she needed.
Promise Keeper Freeze Game
You will need an open space and a timer or a clock. Children move around the room like they are waiting, slowly, for something they were promised. When you call “Promise!”, they freeze in a happy pose, like Sarah laughing. Play a few rounds and talk about how God keeps His promises even when we wait.
Take-Home Promise Jar
You will need a clean jar, paper slips, and a pen. Each child writes or draws one thing they are waiting for and keeps it in the jar. Ask them to take it home and pray about one slip each day, reminding them that God knows what we need and keeps His promises. Check the jar together next week to celebrate any answers.
Teacher Notes
For adults, Genesis 21 shows that God’s faithfulness is not dependent on human timing or ability. Abraham and Sarah were too old to have a child, yet God acted at the set time He had named, which points to God’s power and his covenant love. The chapter also shows that God cares for those who are cast out, like Hagar and Ishmael, and that He hears the cries of the lonely.
With children, avoid making the story a lesson about sibling rivalry or about blaming Ishmael and Sarah. Keep the focus on God’s faithfulness and care. It is also good not to suggest that every waiting time will end in a baby or a specific answer, but to point children to the God who always keeps His word.
A Prayer to Close
Lord, thank You that You always keep Your promises and never forget us. Help us to wait for You, even when it feels long. Thank You for hearing us when we cry and for showing us the water we need. Help us to trust You every day. Amen.
