This is the passage where 3 men came to Abraham when he was camped under some trees and he had them rest while he, Sarah and his servants prepared these men a meal.When Abraham took the food to the men and stayed with them while they ate,the men begin to ask Abraham about Sarah and tell him that by this time next year she'll have a son. Sarah is listening in on the conversation and finds it amusing because by this time Abraham is more than 99 years old and Sarah is more than 90 years old.
This is a passage where we also see God in a human form; it appears that one of the 3 men must have been God Himself. The reason I think this is because in Genesis 18:1 it says that the LORD appeared to Abraham, then it goes on in the following verses to talk about these 3 men, then in the 13th verse it again states what the LORD said to Abraham.
But what really hits me as I read this is that Sarah was expecting to have that baby way back many years before all this. In Genesis 16, when Abraham was 86 years old, Sarah had gotten tired of waiting on God and tried to fulfill His promises to her by having Abraham have a child with Sarah's maid.
As I'm studying these chapters I wonder if part of why God waited so long to fulfill His promise to Abraham and Sarah was so that there would not be any way Abraham and Sarah could claim credit. By the time they had Issac they were so old that it was impossible for them to have children, so it was obvious that it was God making things happen.
Sarah was old, but you don't have to be old to feel worn out. Have you ever felt too tired, worn out, and beaten up by life to believe God can do anything miraculous and wonderful with you? Can you come up with all kinds of reasons why you think God would be past being able to use you?
My experiences have shown me the truth of what Jesus said in Matthew 5:3 (MSG):
“You're blessed when you're at the end of your rope. With less of you there is more of God and his rule.”
Have you ever had a time when it seemed that God had waited to bless you until you'd gotten out of the way?