Children of promise

Now we, brethren, as Isaac was, are children of promise. – Galatians 4.28

There is not a whole lot here, but I really like what it says. It is a special part of salvation. 

Isaac was a child of promise. God had promised old Abraham and his barren wife Sarah that they were going to have a son. When it didn't happen at first they tried their own methods to have a son. And Abraham had a son by Hagar. 

But he wasn't a son of promise. He was a son that fulfilled the letter of the Law. He was a son achieved by man taking things into his own hands without waiting on God. 

Eventually God sent a promise that Sarah would have a son. And she did. God fulfilled His promise when barren Sarah bore a son. It took a while in human terms, but God fulfilled His promise. 

Here we read that we too are children of promise. God has promised that all who put their faith in Christ will inherit eternal life. God made a promise, just like He did to Abraham and Sarah. God cannot lie. He will fulfill His promise. O what joy and hope we have in that promise that cannot be broken.