Sacrifices of Righteousness
Neither will I offer burnt offings unto the Lord my God of that which doth cost me nothing.
II Samuel 24:24b
I had worked hard all day and I was very tired. After supper I was assigned to kitchen clean up, about another hour of work. I was a bit grumpy, telling the Lord about how much my leg hurt.
Then He gently helped me to realize that the harder something was for me, the more precious it was to Him.