Children often enjoy making their knees jump. They will sit in a chair and let their bent leg hang loosely. Then a friend, parent, or doctor will tap it lightly. If it is done correctly, the child’s leg will jump. This happens because we have nerves which jerk when tapped. The real name is the patellar reflex.
The knee is particularly important for boys and girls because it allows them to run, jump, and kick. Try running with your knee stiff and see how much you miss it.
Our upper and lower leg bones meet at the knee and look like a door hinge. They fold back the same way a door swings. Fortunately for us our knees bend backwards but not forwards. If they bent both ways we would spent all day trying to balance ourselves. To stop them from bending forward God placed a knee cap at the hinge. It measures the size and shape of a chestnut. When you stand up your upper leg straightens against the kneecap. It holds the leg in place until you decide to bend it again.
In between the two leg bones is a cushion called cartilage. It holds body liquid like a sponge. Cartilage stops bones from rubbing against each other. Without this careful “oil” system our body would wear out in a few short years.
There is one comical scene in the Bible about a man’s knees. After Belshazzar saw a man’s finger write on his wall the Bible says in Daniel 5:6 that his face turned pale and he was so frightened that his knees knocked together and his legs gave way.
In the future all of us will put our knees to good use. One day every human being will bend his knees before Jesus Christ. We will bow down call Him Lord. Some will do it because they have to, although they will not trust Him as their Savior. These will spend forever separated from Him. Others will gladly bow down and own Him as their Lord and be with Him forever. What you do about the Lord Jesus now will determine where you will spend forever. If you in your heart believe He died and arose again to pay for your sins, and if you turn from your sin and receive Him as your only God and Savior, then you will be in the group that gladly bows and spends forever with Him. Philippians 2:9-11 says that God has highly exalted Him and given Him the Name which is above every name that at the Name of Jesus every knee should bow… and every tongue shall confess that Jesus Christ is Lord to the glory of God the Father.
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