Read Psalms 136:1&26  Isn't it interesting that the first and last verse of this Psalm are almost exactly alike?  We are reminded to do what in these two verses?  It is important for us to be thankful.  The opposite of thankful is selfish.  I am sure you would rather be thankful than selfish.  No one likes to be around a selfish person.  The only thing that they talk about is themselves.  How boring.  And then the reason that we should be thankful is because the Lord is good.  Think of some of the things that the Lord has done for you today.  Then think of some of the things that God had given you today.  The last part of these two verses is exactly the same: His mercy endures forever.  Do you remember the difference between grace and mercy?  Grace is God giving us something good that we do not deserve.  Mercy is God not giving us the punishment that we do deserve.  God knows ahead of time that we are going to mess things up.  But He is willing to forgive us and to give us His mercy instead of punishing us for what we have done.  And that is just another reason that God is good!  Thank the Lord in your prayers tonight because He is good.  He will like that.