Read Psalms 40:1-3  King David was going through some trouble.  Have you had days when it seemed like you kept getting into trouble.  On days like that everything you do seems to be the wrong thing.  But sometimes we make our own trouble.  When we don't listen to our mother, we will soon get into trouble.  She may say, "Don't take out the trash just yet," because she is peeling potatoes for supper.  She is putting the peelings in the sink and will throw them all away soon.  She wants you to wait so that you can take those peelings out with the bag that is almost full.  But all that you hear is "take out the trash."  So you do.  But then your mother fusses at you for taking out the trash before she had a chance to put the peelings in the bag.  You caused your own trouble by not listening.  David did 3 things in these 3 verses: first, he waited for the Lord.  He knew God was in control.  He knew God would not forget about him.  Second, David let God solve his problem.  It was God who brought him up out of the horrible pit.  God will take care of our troubles if we let Him.  Then last, David sang praises to God for delivering him out of his troubles.  We should thank the Lord for helping us.  When we do, we will be joyful and have a song in our hearts and a song on our lips.  Pretty soon others will see that we are happy in the Lord.  I hope you are happy in the Lord today!