The Word of God is powerful. When you read it, your life will be changed. It is not just an old, dusty book that has no relevance. As you read it, asking the Holy Spirit for revelation, He will speak to you through His Word. He will convict you about your sin and will give you direction about your life.
Joints and Marrow
The three parts of the inside of the bone are the marrow, surrounded by the actual bone cells (which is where the blood cells are) and the outside membrane.
This membrane is a very hard substance and is called the periosteum.
It would be very difficult to slice between the three parts because the three parts are fused together to form the bone. It could be done, but only with the very sharpest knife or tool.
In this passage, the Word of God (ie.the Bible ) is being compared to this, the sharpest of knives with precision cutting abilities.
God knows what He wants to accomplish in our lives and as we meditate on the Word of God He operates on us (spiritually) with the precision of a surgeon.
Let His Word transform your inner being!
Take a Gospill!
God knows our frailties and our weaknesses and He wants to do a work in our life.